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D D T, in Drug .............................  514 / 748 

D D V P, in Drug ...........................  514 / 136 

D N A ......................................  536 / 23.1+ 

D N A Mimics ...............................  536 / 24.1 

Dacron Insulated Cable .....................  174 / 100 

DACRON™    (See Also Synthetic Resin .......  528 / 308.1 
    Or natural rubber) .....................  528 / 308.1 

Dado   
    Cutter .................................  144 / 222 
    Lapped multiplanar surfacing ...........  52 / 536 
    Machine ................................  144 / 133.1+ 

Daggers ....................................  30 / 295 

Daguerreotypy ..............................  396 / 438 
    Analysis and analytical control   
        Apparatus ..........................  422 / 50+ 
    Apparatus design .......................  D16 

Dairy Type Bottles .........................  D09 

Dairy, Food Treatment ......................  99 / 452+ 

Dam ........................................  405 / 107+ 
    Dental .................................  433 / 136+ 
    Mortar .................................  52 / 421 
    Power extraction from water ............  405 / 78 

Dampening (See Damper; Moistener; ..........  68 / 5 R 
    Steaming) ..............................  68 / 5 R 
    Consumable electrode electric lamp   
        Electromagnet feeding with .........  314 / 128 
        Damping ............................  314 / 128 
        Feed with damping ..................  314 / 99+ 
    Instrument mechanism damping ...........  73 / 430 
        Bourdon tube .......................  73 / 739+ 
    Musical instrument damping .............  84 
    Overhead electric conductor with .......  174 / 42 
    Vibration damping ......................  174 / 42 
    Paper making calender ..................  100 / 73+ 
    Planographic printing ..................  101 / 147+ 
        Copying apparatus ..................  101 / 132.5 
    Pressure compensator   
        Pipes and tubular conduits .........  138 / 26+ 
        Pumps combined .....................  417 / 540+ 
    Vibration damping support ..............  248 / 562+ 
        Nonresilient .......................  248 / 636 
        Resilient ..........................  248 / 562+ 
        Suspension .........................  248 / 610+ 

Damper   
    Ear sound stoppers .....................  128 / 864+ 
    Electric measuring instruments for .....  324 / 125 
    Electric musical instrument for ........  84 / 600 
        Envelope shaping (i.e., attack, ....  84 / 627 
        Decay, sustain, or release) ........  84 / 627 
        Envelope shaping (i.e., attack, ....  84 / 663 
        Decay, sustain, or release) ........  84 / 663 
        Envelope shaping (i.e., attack, ....  84 / 702 
        Decay, sustain, or release) ........  84 / 702 
        Envelope shaping (i.e., attack, ....  84 / 738 
        Decay, sustain, or release) ........  84 / 738 
        Volume control .....................  84 / 633 
        Volume control .....................  84 / 665 
        Volume control .....................  84 / 711 
        Volume control .....................  84 / 741 
    Electric winding for alternating .......  310 / 183+ 
    Or direct current dynamos ..............  310 / 183+ 
    Fluid damper for planetary gear ........  475 / 92 
    Element ................................  475 / 92 
    Flywheels having .......................  74 / 574.1+ 
    Furnace draft ..........................  110 / 163 
    Heat exchanger .........................  165 / 69 
    Impact absorption ......................  49 / 9 
        By flexible barrier ................  49 / 9 
        By plastic deformation .............  188 / 371+ 
        By resilient deformation ...........  188 / 268 
    Inertial vibration damper ..............  188 / 378+ 
    Microphone or diaphragm ................  381 / 354 
    Piano damper head and stems ............  84 / 255 
        Harmonic ...........................  84 / 234 
        Held ...............................  84 / 218 
        Lifted .............................  84 / 217 
    Railway truck ..........................  105 / 193 
    Stove or furnace flue ..................  126 / 285 R+ 
        Open evaporating pans having .......  159 / 41 
        Time controlled ....................  126 / 285.5 
    Weighing scale .........................  177 / 184 
    Zither .................................  84 / 287+ 

Damping Diode ..............................  313 / 317 
    With emissive cathode ..................  313 / 310 
    With thermionic cathode ................  313 / 310 
    With two cathodes and anodes ...........  313 / 1 

Dancing   
    Figure toys ............................  446 / 330+ 
    Shoes ..................................  36 / 8.3 
    Teaching ...............................  434 / 250 

Dandy Roll .................................  162 / 314 

Dark   
    Cabinet photography ....................  396 / 589+ 
    Lantern with shutter or screens ........  362 / 167+ 
    Room   
        Illuminators .......................  362 / 293 
        Ventilators ........................  454 / 49+ 

Darning   
    Knitting ...............................  66 / 2 
    Last ...................................  223 / 100 
    Sewing machines ........................  112 / 121 
        Design .............................  D15 / 66+ 
        Elements ...........................  112 / 236 
    Weaving ................................  139 / 33.5 

Dart .......................................  473 / 578+ 
    Design .................................  D22 / 115 
        Amusement devices ..................  D21 / 387 
        Projector ..........................  D22 / 107 
    Projector ..............................  124 / 22 
    Targets ................................  273 / 348+ 

Dashboard ..................................  362 / 482 
    Land vehicle ...........................  296 / 70+ 
    Lighting   
        Automobile .........................  362 / 23.22 
        Automobile .........................  362 / 23.01+ 
        Trolley car or rail car ............  362 / 478+ 
    Motor vehicle ..........................  180 / 90 

Dasher   
    Food ...................................  366 / 69+ 
    Gas and liquid contact .................  261 / 32+ 

Dashpot   
    Check valve ............................  137 / 514+ 
    Closure check ..........................  16 / 82+ 
    Closure check brake type ...............  188 / 266+ 
    Door check and closer ..................  16 / 49+ 
    Electrode feed retarder ................  314 / 99+ 
    Electromagnetic electrode ..............  314 / 128 
    Operator combined with .................  314 / 128 
    Gas & liquid contact apparatus .........  261 / DIG 18 
    Spring combined with ...................  267 / 195+ 
    Switch contact retarder ................  200 / 34 
    Valve retarder .........................  251 / 48+ 
    Water closet elements ..................  4 / 248 
    Water closet tank valve ................  4 / 388+ 

Dasymeters .................................  73 / 30.01+ 

Data Comparing   
    Calculator .............................  235 / 431 
    Cards perforated sorting ...............  209 / 613 
        Condition responsive ...............  209 / 554 
    Lens ...................................  333 / 248+ 
    Meter fluid flow .......................  73 / 196+ 
    Punching machine .......................  234 / 34 

Data Conversion   
    Analog to digital ......................  341 / 126+ 
    Card or tape punch .....................  234 / 69+ 
    Cryptographic ..........................  380 
    Digital to analog ......................  341 / 126+ 
    Digital to digital .....................  341 / 50+ 
    Radix conversion .......................  341 / 50+ 
    With card or type punch ................  234 / 69+ 
    With computation .......................  341 / 75+ 
    With visual display ....................  345+ 

Data Handling   
    For voting, computerized ...............  705 / 12 
    Selective punching .....................  234 
        Storage ............................  234 / 55+ 

Data Presentation ..........................  358 / 1.1+ 

Data Processing, Electrical ................  700 
    Applications ...........................  700 / 90+ 
        Product assembly or ................  700 / 95+ 
        Manufacturing ......................  700 / 95+ 
    Business management ....................  705 / 1.1+ 
    Business, using cryptography ...........  705 / 50 
        Data distribution ..................  705 / 51 
            Copy protection or prevention ..  705 / 57 
            Using a program or origin ......  705 / 58 
            Identifier .....................  705 / 58 
            Licensing ......................  705 / 59 
            Requiring additional user ......  705 / 55 
            Input for authorization ........  705 / 55 
            Requiring additional user inpu .  705 / 55 
            Specific computer id ...........  705 / 56 
            With usage or charge ...........  705 / 52 
        Determination ......................  705 / 52 
            Multi-layered rights for use ...  705 / 54 
            Third party billing ............  705 / 53 
        Electronic negotiation .............  705 / 80 
        Home banking .......................  705 / 70 
        Initializing .......................  705 / 73 
        Key management .....................  705 / 71 
        Postage meters .....................  705 / 60 
            Data protection ................  705 / 405 
            Including printing or ..........  705 / 62 
            Verification of mark ...........  705 / 62 
            Reloading or recharging ........  705 / 61 
        Radio communication ................  705 / 73 
        Secure transactions ................  705 / 64 
            Able to use multiple cards .....  705 / 73 
            Anonymous user .................  705 / 74 
            Authorization to proceed .......  705 / 76 
            Charge determination at ........  705 / 77 
            Remote site ....................  705 / 77 
            Communication between two ......  705 / 79 
            Financial networks .............  705 / 79 
            With third party ...............  705 / 78 
        Specialized keypad .................  705 / 73 
        Specialized terminal ...............  705 / 73 
        Transaction confirmation ...........  705 / 75 
        Verification of pin ................  705 / 72 
        With intelligent token .............  705 / 65 
            Balancing account ..............  705 / 68 
            Detecting double spending ......  705 / 69 
            Initializing or reloading ......  705 / 66 
            With authentication ............  705 / 67 
        Utility metering ...................  705 / 63 
    Calibration or correction system .......  702 / 85+ 
    Computers, generic control .............  700 / 1+ 
    Controlled by record means .............  235 / 375+ 
    Electrical computers and ...............  706 
    Financial ..............................  705 / 35+ 
    General purpose digital data ...........  706 
    Processors .............................  706 
    Graphics ...............................  345 / 418+ 
    Measuring system .......................  702 / 127+ 
    Measuring system in a ..................  702 / 1+ 
    Specific environment ...................  702 / 1+ 
    Microprocessors ........................  706 
    Programmed processing ..................  706 
    Selective punching, for ................  234 / 55+ 
    Synchronous transmission of digital ....  375 / 354+ 
    Data ...................................  375 / 354 
    Testing system .........................  702 / 108+ 
    Text/document ..........................  715 / 200+ 
    Three dimensional ......................  345 / 419+ 
    Video color signal derived by data .....  348 / 571+ 
    Processor ..............................  348 / 571+ 

Data Processing, Non-Electrical ............  705 / 500 

Data Storage   
    Dynamic information storage or .........  369 
    Retrieval ..............................  369 
        Magnetic ...........................  360 
        Optical ............................  720 
    Registers electrical ...................  377 
    Registers mechanical ...................  235 
    Static information storage or ..........  365 
    Retrieval ..............................  365 

Dauber .....................................  15 / 209.1+ 
    Animal antivermin treatment ............  119 / 652 
    Polisher combined ......................  15 / 107+ 
        Kit including polish ...............  401 / 118+ 
    Supply container closure attached ......  401 / 126+ 

Daunomycinone ..............................  552 / 201 

Davenports, I.E., Sofa Beds ................  5 / 12.1+ 

Davit ......................................  114 / 368+ 

Davy Lamp ..................................  362 / 164+ 

Day Beds ...................................  5 / 12.1+ 

DC to AC Chopper ...........................  363 / 124+ 

Dead Bolt for Lock .........................  70 / 113+ 

Dead Center Overcoming .....................  74 / 36 

Dead End Connector Cord Holder .............  24 / 115 R+ 

Dead Man Type Anchor .......................  52 / 166 

Dead Mans Switch ...........................  191 / 1 R 
    Switch structure .......................  200 

Deadeners (See  Dampening)   
    Gearing having plural sections .........  74 / 443 
    Railway   
        Car wheel ..........................  295 / 7 
        Cushioning of track ................  238 / 283+ 
        Rolling stock ......................  105 / 452 
        Track ..............................  238 / 382 

Dealkylation (See  Cracking)   
    Aromatic hydrocarbon synthesis .........  585 / 483 
    Foam breaking ..........................  516 / 115+ 
    Mineral oil ............................  208 / 46+ 

Debarking ..................................  144 / 340 

Debit Account   
    Used at point of sale terminal .........  705 / 17 

Deboning   
    Carcasses ..............................  452 / 135+ 

Debris Accumulating Pencil .................  30 / 453+ 
    Sharpener ..............................  30 / 453+ 

Debris Control .............................  29 / DIG 50 
    Chutes .................................  29 / DIG 102 
    Receptacle, remover ....................  29 / DIG 79 
    Remover, catcher, deflector ............  29 / DIG 94 
    Remover, plural type ...................  29 / DIG 61 
    Separators from workpiece ..............  29 / DIG 53 

Decade Counter   
    Electronic tube type ...................  377 / 103 
    Gas tube ...............................  315 
    Oscillator .............................  377 

Decahydronaphthalene   
    (See  alicyclic hydrocarbon)   
    Naphthalene hydrogenation ..............  585 / 266+ 
    Synthesis ..............................  585 / 350+ 
        Hydrogenation of unsaturated .......  585 / 266+ 
        Hydrocarbon ........................  585 / 266+ 

Decal See Decalcomania   

Decalcomania (See  Transfer) ...............  D20 / 11 
    Exposable adhesive layer ...............  428 / 40.1+ 
    Fraud or tamper detecting ..............  428 / 915* 
    Made by coating ........................  427 / 147+ 
    Process of transfer ....................  156 / 230+ 
    Stock material .........................  428 / 914* 

Decalin (See  Alicyclic Hydrocarbon)   

Decanter   
    Coffee .................................  222 / 475.1 
    Design .................................  D07 / 300+ 
    Distillation systems separatory ........  202 / 204 
    Filter combined ........................  210 / 299+ 
        Heating means ......................  210 / 182+ 
    Gas and liquid contact .................  261 / 7+ 
    Liquid separation ......................  210 / 513+ 
    Starch .................................  127 / 27 

Decanting ..................................  210 / 767+ 
    Filtering combined .....................  210 / 806 

Decapitator   
    Chicken ................................  452 / 64 
    Fish ...................................  452 / 166+ 

Decarbonizing   
    Absorbents .............................  502 / 20+ 
    Catalysts ..............................  502 / 20+ 
    Mineral oil vaporizing combined ........  208 / 347+ 
        Apparatus ..........................  196 / 122 
        Conversion combined ................  208 / 48 R 
    Processes ..............................  134 / 39 
        Heating combined ...................  134 / 20 
    Stills .................................  201 / 2 
        Apparatus ..........................  202 / 241 

Decarboxylation Aromatic ...................  562 / 479 
    Polycarboxylic acid ....................  562 / 479 

Deceleration (See  Acceleration)   

Decelerometer ..............................  73 / 514.01+ 

Decibel Meter   
    Meter movement .........................  324 / 76.11+ 
    Sound loudness measurement .............  73 / 646 

Decimal Point on Calculators ...............  235 / 61 DP 
    Binary coded ...........................  377 / 33 
    Elimination ............................  235 / 63 DE 
    Locators ...............................  235 / 64.3 

Deciphering See Cryptography   

Deck   
    Bridge .................................  14 / 6 
    Railroad   
        Freight cars with ..................  105 / 370 
        Convertible decks ..................  105 / 370 
        Livestock carrying cars with .......  119 / 406+ 
        Passenger cars double decked .......  105 / 340 
    Ship ...................................  114 / 85 
    Type insulator for antenna .............  174 / 158 R 

Deckling   
    Paper making   
        Finishing ..........................  162 / 286 
        Web forming ........................  162 / 310 
    Pinking shears .........................  30 / 229+ 
    Sheet   
        Cutting ............................  83 
        Tearing ............................  225 

Decladding Nuclear Fuel ....................  252 / 625 

Decoding (See  Cryptography)   

Decollator .................................  270 
    Web ....................................  270 / 52.01+ 

Decolorizing (See  Bleaching)   
    Liquids ................................  210 / 660+ 
        X-art collection ...................  210 / 917+ 

Decomposing Fat ............................  554 / 160 

Decoration (See Article By Name;   
    Ornament)   
    Bow rosette, pompon ....................  428 / 4+ 
    Collapsible ............................  428 / 12 
    Displays and exhibitors ................  40 / 406+ 
        With special effects ...............  40 / 427+ 
    Feathers and plumes ....................  428 / 6 
    Festoon ................................  428 / 10 
        Collapsible ........................  428 / 9 
    Filamentary ............................  428 / 542.6 
    Flora, artificial ......................  428 / 17+ 
    Lamp housing ...........................  362 / 362+ 
    Lights .................................  362 / 227+ 
        X-art collection ...................  362 / 806* 
    Party type .............................  428 / 7+ 
    Pole, cap ..............................  52 / 301 
    Roof finial or cresting ................  52 / 57 
    Sheet-form .............................  428 / 542.6 
    Trimming for clothing ..................  2 / 244 
    Trimming for hat .......................  2 / 175.3 
    Trimstrip for building .................  52 / 716.1+ 

Decorticating ..............................  19 / 5 R+ 

Decoupling Filter ..........................  333 / 181+ 

Decoy   
    Design .................................  D22 / 125+ 
    Trapping ...............................  43 / 2+ 
    War training ...........................  434 / 11 

Deep Drawing Metal .........................  72 / 347+ 

Deer Sling .................................  224 / 101+ 

Defecating Apparatus .......................  127 / 11+ 

Defect Coating .............................  430 / 938* 

Defiberizers ...............................  241 

Deflating Tool for Resilient Tires .........  81 / 15.4 

Deflection   
    Cathode ray stream .....................  313 / 421+ 
    Cathode ray stream .....................  315 / 399 
    Gas separation apparatus ...............  96 / 396+ 
        Gas separation processes ...........  95 / 267+ 
        Liquid treatment ...................  96 / 243+ 
    Lamp arc ...............................  313 / 153+ 
        Consumable electrode ...............  314 / 20 
    Solid separator   
        Gas suspension .....................  209 / 143+ 
        Liquid suspension ..................  209 / 210 
    Testing ................................  73 / 849+ 
    Wind motor wheel .......................  416 / 9+ 

Deflector   
    Bearing lubricator .....................  384 / 322+ 
    Blowpipe nozzle ........................  239 / 461+ 
    Breath .................................  128 / 863 
    Drip ...................................  52 / 97 
    Fluid distributor ......................  239 / 461+ 
    Fluid fuel burner nozzle ...............  239 / 461+ 
    Furnace air ............................  110 / 310+ 
    Gas separation apparatus ...............  55 / 434+ 
        Gas sparation processes ............  95 / 267+ 
    Pipe ...................................  138 / 37+ 
    Plant ..................................  172 / 517 
    Scouring dredger with current ..........  37 / 342+ 
    Ship armor .............................  114 / 10 
    Sprinkler combined .....................  239 / 461+ 
    Water motor ............................  416 / 9+ 
    Windmill ...............................  416 / 9+ 
    Window wind ............................  454 / 196+ 
        Vehicle ............................  454 / 69+ 

Deflocculation   
    Liquid separation ......................  210 / 696+ 
    Solid separation .......................  209 / 5 

Defoliants .................................  504 / 162+ 

Deforming   
    Metal ..................................  72 
        Casting combined ...................  29 / 527.5+ 
    Plastics   
        Apparatus ..........................  425 
        Processes ..........................  264 
    Single roll per se .....................  492 / 1+ 

Defribrillators ............................  607 / 5+ 

Defroster   
    Electrical resistance heaters ..........  219 / 203 
    Heat applying window cleaner ...........  15 / 250.05 
    Material applying window cleaner .......  15 / 250.01 
    Refrigerator design ....................  D08 / 29.2 
    Surface heater .........................  126 / 271.1+ 
    Vehicle power plant heater .............  237 / 12.3 A 
    Combined ...............................  237 / 12.3 A 
    Window .................................  52 / 171.2+ 
        Building type ......................  454 / 198 
        Vehicle type .......................  454 / 121+ 

Defrosting   
    Defrosting device ......................  D08 / 29.2 
    Heat pump ..............................  165 / 231 
    Refrigeration apparatus ................  62 / 272+ 
        Automatic ..........................  62 / 151+ 
        Automatic, frost initiated .........  62 / 140 
        Frost indicator ....................  62 / 128 
        Process ............................  62 / 80+ 

Degasification .............................  588 
    Hazardous or toxic waste ...............  588 
    Degasification .........................  588 

Degasifying Liquids  + 
    Apparatus ..............................  96 / 155+ 
    Process ................................  95 / 241+ 

Degassers ..................................  261 / DIG 19 

Degaussing See Demagnetizing   
    Means in cathode ray tube circuit ......  315 / 8 
    Television .............................  361 / 150 
    Torpedo nets ...........................  114 / 240 R 

Degradability Enhanced Synthetic ...........  523 / 124+ 
    Resin or natural rubber composition ....  523 / 124+ 
    Cellular product .......................  521 / 916* 

Degreasing   
    Distillation   
        Still and extractor ................  202 / 168+ 
        Still extractor ....................  202 / 170 
    Solids .................................  134 
    Textiles ...............................  8 / 139+ 

Degumming ..................................  8 / 138 
    Dyeing combined ........................  8 

Dehalogenation   
    Hazardous or toxic waste ...............  588 / 300+ 
    Destruction ............................  588 / 300+ 
    Preparation of epoxy compounds .........  549 / 518+ 
    Preparation of olefines ................  585 / 641+ 
    Preparation of unsaturated esters ......  560 / 213 

Dehorners   
    Electric heater type ...................  606 / 164 
    Hand tool ..............................  30 

Dehumidifier ...............................  D23 / 359+ 

Dehydrating Oil   
    Fatty oils .............................  554 / 223+ 
    Mineral oil ............................  208 / 187+ 
        Electrical separation ..............  204 / 559+ 
        Electrophoretic or .................  204 / 513+ 
        Electroosmotic .....................  204 / 513+ 

Dehydration (See  Drier)   
    Acid anhydrides by .....................  562 / 869+ 
    Acyclic ketones from alcohols ..........  568 / 403+ 
    Aldehydes from alcohols ................  568 / 485+ 
    Compositions ...........................  252 / 194 
    Concentrating evaporating ..............  159 
    Distillation ...........................  203 / 12+ 
    Fatty oils or acids ....................  554 / 24+ 
    Foods ..................................  426 / 443+ 
        Apparatus ..........................  99 / 467 
    Gas or vapor contact with solids .......  34 
    Gas separation .........................  95 
        Refrigeration combined .............  62 / 271 
        Refrigeration combined process .....  62 / 93+ 
    Hydrocarbon   
        Electrical .........................  204 / 559+ 
        Oil   
            Electrophoretic or .............  204 / 513+ 
            Electroosmotic .................  204 / 513+ 
    Mineral oils ...........................  208 / 187+ 
    Olefine production by ..................  585 / 638 
    Refrigerant ............................  62 / 474+ 
        Automatic ..........................  62 / 195 
        Process ............................  62 / 85 

Dehydroabietic Acid ........................  562 / 404 

Dehydroandrosterone ........................  552 / 636 

7-Dehydrocholesterol .......................  552 / 547 

Dehydrogenation   
    Acyclic ketones from alcohols ..........  568 / 403+ 
    Aldehydes from alcohols ................  568 / 485+ 
    Aromatic hydrocarbon synthesis .........  585 / 440 
    Diolefin hydrocarbon synthesis .........  585 / 616+ 
    Esters from alcohols ...................  560 / 239 
    Mineral oil ............................  208 / 46+ 
    Olefines from hydrocarbons .............  585 / 654+ 
    Synthesis aromatic from alicyclic ......  585 / 430 

Dehydrohalogenation   
    Alicyclic hydrocarbon synthesis ........  585 / 359 
    Diolefin hydrocarbon synthesis .........  585 / 612 
    Olefin hydrocarbon synthesis ...........  585 / 641+ 

Dehydrothiotoluidine Azo Compounds .........  534 / 800 

Deicer See Thawing   
    Aircraft ...............................  244 / 134 C 
    Antenna ................................  343 / 704 
    Carburetors ............................  261 / DIG 20 
    Combustion product as motive fluid .....  60 / 39.093 
    Trolley collector head .................  191 / 62 

Deinking   
    Paper stock ............................  162 / 4+ 
    Textiles ...............................  8 / 137 

Delasting ..................................  12 / 15.1 

Delay Networks   
    Delay lines including   
        A lumped parameter .................  333 / 138+ 
        Elastic bulkwave propagation .......  333 / 141+ 
        Means ..............................  333 / 141+ 
        Elastic surface wave ...............  333 / 150+ 
        Propagation means ..................  333 / 150+ 
        Long line elements .................  333 / 156+ 
    Electronic system ......................  327 / 261+ 

Delinter ...................................  19 / 40+ 
    Carbonizing processes ..................  8 / 140 

Delinting Cotton Seed ......................  47 / 1.01 R 
    Processes ..............................  47 / 58.1 R 
        Fluid treatment ....................  8 / 140 

Delivery   
    Collection receptacle ..................  232 
        Coins ..............................  232 / 64+ 
        Letter box chute ...................  232 / 53 
    Conveyer ...............................  198 
        Carrier controlled selective .......  198 / 570+ 
    Coordinating among several dining ......  705 / 15 
    Establishments .........................  705 / 15 
    Dumping vehicle with chute .............  298 / 7 
    Letter box .............................  232 / 17+ 
    Mail from aircraft .....................  258 / 1.2+ 
    Planting chute .........................  111 / 76 
    Railway mail ...........................  258 
    Railway selective ......................  104 / 88.01+ 
    Record holder ..........................  312 / 9.11+ 
    Sheet ..................................  271 / 278+ 
    Store service ..........................  186 / 3 

DELRIN™    (Polyoxymethylene) ..............  528 / 270 

Delustering   
    Cellulose ether or ester ...............  106 / 168.01+ 
    Compositions ...........................  106 / 168.01+ 
        Viscose ............................  106 / 166.01+ 
    Coating or impregnating processes ......  427 / 170 

Demagnetizing ..............................  361 / 267 
    Demagnitizer ...........................  D13 / 183 
    Erase,head .............................  360 / 118 
    General recording biasing,erasing ......  360 / 66 
    Of clocks ..............................  968 / 783 
    Sorting treatment ......................  209 / 8 

Demijohns See Carboy .......................  D09 / 517 

Demodulator ................................  329 

Demonstrating Apparatus or Product .........  434 / 365+ 

Demonstrator Radioactivity   
    (See radioactivity demonstrator)   

Demountable Rim ............................  301 / 10.1+ 

Demulsifying Compositions ..................  516 / 135+ 

Denatured Compositions .....................  252 / 365 
    Alcohol ................................  252 / 366 

Densitometer   
    Emulsion exposing printer ..............  396 / 563 
    Emulsion opaqueness measuring ..........  356 / 436+ 

Density   
    Analysis gas ...........................  73 / 30.01+ 
    Analysis liquids .......................  73 / 32 R+ 

Dent Remover Sheet Metal ...................  72 / 457 

Dental and Dentistry .......................  433 
    Amalgams and alloys ....................  420 / 526 
        Amalgam mixer, eg dental filling ...  366 / 602* 
    Apparatus,fixed ........................  D24 / 176+ 
    Apparatus,portable .....................  D24 / 152+ 
    Appliance manufacturing ................  29 / 896.1+ 
    Cabinet ................................  312 / 209 
    Cassettes ..............................  378 / 168 
    Chairs .................................  297 / 68+ 
        Design .............................  D06 / 334 
    Compositions ...........................  106 / 35 
    Containers for dental use ..............  206 / 63.5 
    Dentures ...............................  433 / 167+ 
    Die shaping ............................  72 
    Engines ................................  433 / 103+ 
    Equipment stands .......................  433 / 25+ 
    Fillings ...............................  433 / 226+ 
    Floss ..................................  132 / 321 
        Holders ............................  132 / 323+ 
            Design .........................  D28 / 66+ 
    Impression devices .....................  433 / 34+ 
    Impression material ....................  106 / 38.2+ 
    Instruments ............................  433 / 25+ 
    Medicines ..............................  424 
    Molding devices ........................  425 / 2 
    Molding devices ........................  425 / 175+ 
    Molding devices ........................  249 / 54 
        Flasks .............................  425 / 175+ 
        Flasks for metal casting ...........  164 / 376 
        Molds ..............................  425 / 175+ 
    Molding processes ......................  264 / 16+ 
    Orthodontic devices ....................  433 / 2+ 
    Practice ...............................  433 
    Spittoons ..............................  4 / 263+ 
    Spotlights .............................  362 / 257+ 
        X-art collection ...................  362 / 804* 
    Supply packages ........................  206 / 63.5 
    Teaching devices & methods .............  434 / 263 
    Teeth ..................................  433 / 167+ 
    Tool container .........................  206 / 368+ 
    Waste receptacles ......................  206 / 63.5 

Dentifrices ................................  49 

Dentiphone   
    Acoustic hearing aid ...................  181 / 127 
    Electrical hearing aid .................  381 / 312+ 

Dentistry See Dental .......................  433 
    Design .................................  D24 

Deodorant   
    Body ...................................  424 / 65+ 
    Cosmetics containing ...................  424 / 65+ 
    Fertilizer containing ..................  504 / 101+ 
    Milk ...................................  426 / 488 
    Non body ...............................  424 / 76.1+ 
    Preserving, disinfecting, and ..........  422 / 5 
    Sterilizing ............................  422 / 5 

Deodorizer or Ozonizer .....................  D23 / 366 

Deoxidant Compositions .....................  252 / 188.1+ 
    Descaling compositions containing ......  510 / 247+ 
    Water softening or scale ...............  252 / 178 
    Inhibiting compositions ctg ............  252 / 178 

Dephlegmators   
    Mineral oil ............................  196 / 139 
    Still combined .........................  202 

Depilating   
    Animal carcass .........................  452 / 71+ 
    Compositions   
    Electric needle ........................  606 / 44 
        Needle supports ....................  606 / 44 
    Fermentative ...........................  435 / 265 
    Hides and skins ........................  8 / 94.16 
    Mechanical .............................  19 / 2+ 

Depolarizer ................................  252 

Depolarizing   
    Compositions ...........................  252 

Depolymerization to Obtain .................  585 / 241 
    Hydrocarbon mixture ....................  585 / 241 

Deposit   
    Certificates ...........................  283 / 59 
    Change gates ...........................  232 / 14 
    Collection and deposit receptacle ......  232 
        Cabinet combined ...................  312 / 211+ 
    Depository design ......................  D99 / 28+ 
    Letter boxes ...........................  232 / 22 
    Milk bottle collection .................  232 / 42 
    Receptacles for ........................  232 
    Registering or receipt printing ........  109 / 24.1 
    Combined ...............................  109 / 24.1+ 
        Photograph or microfilm record .....  346 / 22 
    Safes or depositories ..................  109 
        Design .............................  D99 / 28+ 
        Receipting means included ..........  109 / 24.1 

Depositor   
    Bread etc making depositor .............  425 / 447+ 
        Implement ..........................  222 
    External body surface ..................  604 / 289+ 
    Medicine ...............................  604 / 47+ 
        Solid materials ....................  604 / 57+ 
    Planting ...............................  111 
        Dibbling ...........................  111 / 89+ 
        Hill ...............................  111 / 34+ 
    Toy figure for coins ...................  446 / 10+ 

Depressor   
    Necktie ................................  24 / 53+ 
    Railway crossing cable .................  104 / 186 
    Tongue .................................  600 / 240+ 
        Atomizer combined ..................  128 / 200.15 

Depth Bomb .................................  102 / 390+ 

Depth Gauge   
    Compressional wave .....................  367 / 99+ 
    Depth measuring instrument .............  D10 / 46+ 
    Fluid level ............................  33 
    Geometrical ............................  33 / 713+ 
        Geophysical exploration ............  324 / 323+ 
        Hydrophone .........................  367 / 141+ 
    Liquid .................................  73 / 290 R+ 
    Radar ..................................  342 / 120+ 
        Other than air, eg, underwater .....  342 / 118 
    Sound ..................................  181 

Derailer   
    Actuated cab signal or train ...........  246 / 170 
    Control ................................  246 / 170+ 
    Cycle or motorcycle ...................  D12 / 124 
        Enclosure or guard .................  D12 / 127 
    Guards   
        Railway ............................  104 / 242+ 
        Store service ......................  186 / 30 
    Lever and cable operator ...............  74 / 502.2 
    Railway   
        Car attached .......................  104 / 261 
        Interlocking .......................  246 / 163 

Derailleur (See  Derailer)   

Derectifiers Electric ......................  363 

Dereverberator .............................  381 / 66 

Dermatological Device   
    Light application ......................  606 / 9 
    Needle surgical ........................  606 / 44 
        Support ............................  606 / 44 
    Surgical instrument ....................  606 / 131+ 

Dermatome ..................................  606 / 132 

Derrick   
    Extensible or movable ..................  52 / 111+ 
    Pushing and pulling elements   
        Cable hoists .......................  254 / 283+ 
        Screw ..............................  254 / 99 
    Skeleton tower .........................  52 / 651.01+ 

Desalting Sea Water ........................  210 / 642 
    Distillation ...........................  203 / 10 
    Fractional crystallization .............  62 / 532+ 
        Direct contact refrigeration .......  62 / 533+ 
    Reverse osmosis ........................  210 / 652 

Descaling Metal ............................  29 / 81.01+ 
    Combined with metal deformation ........  72 / 40 

Deserpidine ................................  546 / 55 

Desiccant ..................................  504 / 162+ 

Desiccation (See  Dehydration; Drier)   

Design (See  Design Classification)   
    Advertizing ............................  D20 
    Apparel & haberdashery .................  D02 
    Arms, pyrotechnic articles, ............  D22 / 112 
    Articles for hunting, fishing, .........  D22 / 112 
    And pest killing .......................  D22 / 112 
    Artists materials ......................  D19 / 101 
    Brushware ..............................  D04 
    Building units & construction ..........  D25 
    Elements ...............................  D25 
    Care & handling of animals .............  D30 
    Cases not specified elsewhere ..........  D03 
    Caskets ................................  D99 / 1+ 
    Coating nonuniform .....................  427 / 256+ 
    Containers .............................  D09 
    Devices & equipment against fire .......  D29 
    Electrolytic   
        Coating ............................  205 / 120+ 
        Lighting ...........................  26 
    Embroidery and trimmings ...............  D05 
    Equipment for production, ..............  D13 
    Distribution or transformation .........  D13 
    Of electricity .........................  D13 
    Exercising equipment ...................  D21 / 662+ 
    Fishing equipment ......................  D22 / 134+ 
    Fluid distribution equipment, ..........  D23 
    Sanitary, heating, ventilation .........  D23 
    And air conditioning equipment .........  D23 
    Foodstuffs .............................  D01 
    Furnishings ............................  D06 
    Games and gambling articles ............  D21 / 300+ 
    Hardware ...............................  D08 
    Household articles, not elsewhere ......  D07 
    Specified ..............................  D07 
    Hunting articles .......................  D22 
    Jewelry, symbolic insignia and .........  D11 
    Ornaments ..............................  D11 
    Knitting & netting .....................  D05 
    Lighting ...............................  D26 
    Linoleum ...............................  D05 
    Luggage & special containers ...........  D03 / 201+ 
    Machines, not specified elsewhere ......  D15 
        Agricultural .......................  D15 / 10+ 
        Cleaning ...........................  D32 / 1+ 
        Construction .......................  D15 / 10+ 
        Drive train ........................  D15 / 148+ 
        Drying .............................  D32 / 8 
        Engine .............................  D15 / 1+ 
        Food or drink related ..............  D07 
        Heat treatment .....................  D15 / 144 
        Lubricator or oil collector ........  D15 / 150+ 
        Material working, etc ..............  D15 / 122+ 
        Packaging or wrapping ..............  D15 / 145+ 
        Pump or compressor .................  D15 / 7+ 
        Refrigeration ......................  D15 / 79+ 
        Sewing .............................  D15 / 66+ 
        Vibrator or separator ..............  D15 / 147 
        Washing ............................  D32 / 6+ 
    Measuring, testing or signaling ........  D10 
    Instruments ............................  D10 
    Medical & laboratory equipment .........  D24 
    Miscellaneous articles not .............  D99 
    Specified elsewhere ....................  D99 
    Musical instruments ....................  D17 
    Office machinery .......................  D18 
    Office materials .......................  D19 
    Packages & containers for the ..........  D09 
    Transport or handling of goods .........  D09 
    Paper manufactures .....................  D05 
    Pharmaceutical products, ...............  D24 / 100+ 
    Toilet articles & apparatus ............  D24 / 100+ 
        Cosmetic products ..................  D28 
    Photographic, cinematographic and ......  D16 
    Optical equipment ......................  D16 
    Printing ...............................  D18 / 50+ 
        Office machinery ...................  D18 
        Office photocopiers ................  D18 / 36+ 
    Recording, communication or ............  D14 / 496+ 
    Information retrieval equipment ........  D14 / 496+ 
    Safes and vaults .......................  D99 / 28+ 
    Sewing equipment .......................  D03 / 18+ 
    Signaling instruments ..................  D10 
    Signs ..................................  D20 / 10+ 
    Smoking articles .......................  D27 
    Sports equipment .......................  D21 / 698+ 
    Stationery, artists & teachers .........  D19 
    Materials, & office equipment ..........  D19 
    Not elsewhere specified ................  D19 
    Teachers materials .....................  D19 / 59 
    Tents ..................................  D21 / 834+ 
    Testing instruments ....................  D10 
    Tobacco & smokers supplies .............  D27 
    Tombstone or monument ..................  D99 / 17+ 
    Tools & hardware .......................  D08 
    Toys ...................................  D21 / 398+ 
    Transportation or hoisting .............  D12 
    Transportation, containers for .........  D09 
    Travel cases ...........................  D03 / 201+ 
    Umbrellas ..............................  D03 / 5+ 
    Vending machines .......................  D20 / 1+ 
    Weaving ................................  D05 / 47+ 

Desilverizing Lead .........................  75 / 697+ 

Desizing ...................................  8 / 138 
    Dyeing combined ........................  8 

Desk   
    Article including card, ................  40 / 358 
    Picture or sign ........................  40 / 358 
        Inkwell combined ...................  108 / 26.2 
    Baggage convertible ....................  190 / 11+ 
    Bed combined ...........................  5 / 2.1+ 
    Chair or seat combined .................  312 / 235.9 
    Design .................................  D06 / 685+ 
    Inkwell combined .......................  312 / 232 
    Kneehole ...............................  312 / 194+ 
    Letter holder, desk-type ...............  D19 / 75+ 
    Pad ....................................  248 / 346.01+ 
        Design .............................  D19 / 99 
    Paper rack or file .....................  211 / 11 
    Piano case .............................  84 / 180 
        Fall board combined ................  84 / 178 
    School desk ............................  D06 / 685+ 
    School seat combined ...................  297 / 135+ 
    Table ..................................  108 
        Combined with other structure ......  108 / 50.11+ 
        With machine or electrical .........  108 / 50.01+ 
        Component ..........................  108 / 50.01+ 
    Typewriter housing or support ..........  312 / 208.1+ 
    Combined ...............................  312 / 208.1+ 
    Wall desk ..............................  D06 / 555 

Desoldering Apparatus ......................  228 / 19+ 

Desoxy Morphine ............................  546 / 46 

Desoxycholic Acid ..........................  552 / 549 

Desoxycorticosterone .......................  552 / 601 

Desserts ...................................  426 / 573 
    Design .................................  D01 

Destructible Feature   
    Static mold ............................  249 / 61+ 

Destruction ................................  588 
    Hazardous or toxic waste ...............  588 
    Destruction ............................  588 

Desuckering ................................  504 / 184+ 

Desuperheaters .............................  261 / DIG 13 

Detacher   
    Cable guide block combined .............  254 / 410 
    Comb combined ..........................  19 
    Fruit gatherer combined ................  56 / 339+ 
    Gin combined   
        Rotary .............................  19 / 53 
        Vibratory ..........................  19 / 52 
    Harness ................................  54 / 69 
    Horse ..................................  278 / 21+ 

Detearing   
    Apparatus ..............................  118 / 639 

Detector and Detecting   
    Amplifier triode .......................  313 / 293+ 
    Beat note   
        Autodyne detector ..................  455 / 321+ 
        Heterodyne detector ................  455 / 313+ 
        Homodyne ...........................  455 / 324 
    Coating or impregnating ................  427 / 7 
    Diode am demodulator ...................  329 / 370 
        Electronic tube type ...............  329 / 370 
    Fiber manipulation combined ............  19 
    Heads   
        Crystal mounting ...................  250 / 361 R 
        Scintillation ......................  250 / 361 R+ 
        With sample holder .................  378 / 38 
    Leak ...................................  137 / 455+ 
    Leak by fluid pressure .................  73 / 40+ 
    Leak system in situ ....................  137 / 551+ 
    Lock combined ..........................  70 / 439 
    Loom   
        Feeler .............................  139 / 269+ 
        Shuttle ............................  139 / 203+ 
        Stopping ...........................  139 / 336+ 
    Metal bending ..........................  72 / 6.1+ 
    Metal detector for airport security ....  340 / 568.1+ 
    Metal detector for library books .......  340 / 572.1+ 
        Magnetic locators ..................  324 / 200+ 
    Musical instrument automatic eg ........  84 / 115 
    Player .................................  84 / 115+ 
    Nuclear explosion ......................  976 / DIG 423 
    Nuclear reactor condition ..............  376 / 245 
    Of submarines   
        Sonar, echo type ...................  367 / 87 
            Non-echo receiver circuitry ....  367 / 135+ 
            Non-echo type ..................  367 / 118+ 
    Ore ....................................  324 / 323+ 
    Pneumatic dispatch .....................  406 / 10+ 
    Radiant energy ray .....................  250 / 336.1 
    Radio receiver (i.e demodulator) ......  329 
    Radio tube structure ...................  313 
    Regenerative demodulator   
        Amplitude modulation type ..........  329 / 367 
    Sales product using a point of sale ....  705 / 23 
    Terminal ...............................  705 / 23 
    Thread finishing combined ..............  28 / 227 
    Warp preparation combined   
        Loom replenishing ..................  28 / 205 
        Stopping ...........................  28 / 189 
    Winding or unwinding   
        Bobbin and cop .....................  242 / 472.9+ 
        Cone wind ..........................  242 / 479.9+ 
        Convolute winding ..................  242 / 534 
        Cordage ............................  242 / 472.9+ 
        Film ...............................  242 / 333+ 
        Magnetic tape ......................  242 / 333+ 
        Unwinding ..........................  242 / 563+ 

Detent   
    Check controlled device ................  194 / 247+ 
    Lock releasing .........................  194 / 247+ 
    Check label and tag holder with ........  40 / 653+ 
    Slide and ..............................  40 / 653+ 
    Chuck socket type with .................  279 / 9.1+ 
    Closure fastener tripper with ..........  292 / 333+ 
    Control lever and linkage system .......  74 / 527+ 
    Detention device combined with .........  340 / 304+ 
    Signal alarm box .......................  340 / 304+ 
    Electrode feed control for .............  314 / 83+ 
    Electric lamp and discharge ............  314 / 83+ 
    Freight car stake ......................  105 / 384 
    Joint with .............................  403 / 326+ 
    Lock   
        Door biased latch bolt with ........  70 / 467+ 
        Padlock with .......................  70 / 20+ 
    Pipe joint   
        Auxiliary ..........................  285 / 82+ 
        Essential holding means ............  285 / 305+ 
        Swivel socket with .................  285 / 276+ 
    Railway switch detention device ........  246 / 399 
    Rod joint or coupling sleeve with ......  403 / 300+ 
    Rotating electric snap switch with .....  200 / 410+ 
    Tool handle fastenings with   
        Hinged .............................  403 / 52+ 
        Rigid ..............................  403 
    Tuners with ............................  334 / 88 
    Typewriter irregular line spacing ......  400 / 563+ 
    Valve holder ...........................  251 / 297+ 
    Wheel attaching device .................  301 / 119 
    Whiffletree with .......................  278 / 108 

Detergent Compositions .....................  510 
    Detergent alkylate synthesis ...........  585 / 455+ 

Detinning   
    Electrolytic stripping of tin layer ....  205 / 719 
    From metal or metal alloy ..............  205 / 719 
        Deposition combined ................  205 / 300+ 
    Hydrometallurgy ........................  75 / 716 
    Metallurgy .............................  75 / 401 

Detonators   
    Characteristics testing for ............  73 / 35.14 
    Compositions ...........................  149 
    Explosive devices ......................  102 
        Design .............................  D22 / 112 
        Safes and bank protection ..........  109 / 36+ 
        Sequentially fired .................  102 / 217 
    Signal and indicators   
        Burglar alarms door & window .......  116 / 87+ 
        Operated ...........................  116 / 87+ 
        Burglar alarms door securing .......  116 / 15 
        Burglar alarms locks ...............  116 / 11 
        Burglar alarms portable ............  116 / 83 
        Burglar alarms sash fastening ......  116 / 17 
        Burglar drop type ..................  116 / 78 
        Lamp ignition combined .............  116 / 7 
        Periodic ...........................  116 / 23 
        Railway torpedo ....................  246 / 487 
            Combined with other signal .....  246 / 217 
            Combined with switch ...........  246 / 217 
            Placing mechanism ..............  246 / 210+ 
    Toys ...................................  446 / 398+ 

Deuterium Heavy Hydrogen ..................  423 / 648.1+ 
    Catalytic recombiner ...................  422 / 213+ 
    Compounds inorganic ....................  423 / 644 
    Electrolytic production ................  205 / 627 
    Thermo nuclear fuel ....................  376 / 151 

Deuterium Oxide Heavy Water ...............  423 / 580.2 
    Catalytic recombiners ..................  422 / 213+ 
    Electrolytic production ................  205 / 464 
    Nuclear moderator ......................  376 / 220 
    Nuclear moderator ......................  376 / 220 
    Nuclear moderator ......................  376 / 350 

Developing   
    Copy camera ............................  355 / 27+ 
    Dyes on fiber ..........................  8 / 666+ 
    Electrophotographic ....................  399 / 222+ 
        Brush applicator ...................  399 / 265+ 
            Magnetic .......................  399 / 267+ 
        Electrodes .........................  399 / 266 
        Electrodes .........................  399 / 270+ 
            Electrophoretic ................  399 / 131 
            Liquid .........................  399 / 241+ 
        Reversal ...........................  399 / 143 
    Photographic apparatus .................  396 / 564+ 
        Design .............................  D16 / 246+ 
    Photographic processes .................  430 / 434+ 
        Compositions .......................  430 / 464+ 
    Sensitizing combined ...................  430 / 434+ 
    Tank ...................................  396 / 636+ 

Devitrification ............................  65 / 33.1+ 

Devitrified Glass-Ceramics .................  501 / 2 

Dew Point (See  Hygrometer)   

Dewaxing   
    Mineral oil ............................  208 / 28+ 
        Apparatus ..........................  196 / 14.5 
    Wax paper ..............................  162 / 4+ 

Dexamethasone ..............................  552 / 574 

Dextran ....................................  536 / 112+ 
    Nitrogen containing ....................  536 / 51 

Dextrin ....................................  127 / 38 
    Fermentative preparation ...............  435 

Dextromethorphan, in Drug ..................  514 / 289 

Dextrose ...................................  127 / 30 

Diagnostic   
    Artificial intelligence see   
    Artificial intelligence   
    Biological test compositions ...........  424 / 9.1+ 
    (In vivo) and methods ..................  424 / 9.1+ 
    Contrast agents (in vivo)   
        Fluorescent ........................  424 / 9.6+ 
        Magnetic resonance imaging .........  424 / 9.3+ 
        Ultrasound .........................  424 / 9.5+ 
        Visible color change in mouth ......  424 / 9.7+ 
        Or skin ............................  424 / 9.7+ 
        X-ray ..............................  424 / 9.4+ 
    Knowledge processing see   
    Artificial intelligence   
    Medical (see medical & surgical ........  600 / 300+ 
    Equipment) .............................  600 / 300+ 
        Acupuncture ........................  128 / 907* 
        Artificial intelligence ............  128 / 924* 
        Computer assisted ..................  128 / 920* 
        Diet management ....................  128 / 921* 
        Eye ................................  600 / 398 
            Test by visual stimulus ........  600 / 558 
        Feedback to patient of .............  128 / 905* 
        Biological signal other than .......  128 / 905* 
        Brain electric signal ..............  128 / 905* 
        Heart ..............................  600 / 508 
        Image analysis .....................  128 / 922* 
        Instrument design ..................  D24 / 107+ 
        Multiphasic diagnostic clinic ......  128 / 906* 
        Respiratory ........................  600 / 529 
        Skin sensitivity to allergens ......  600 / 556 
        Or radiation .......................  600 / 556 
        Skin touch or pain response ........  600 / 557 
        Teaching ...........................  434 / 262+ 
    Test of electrophotographic copier .....  399 / 9+ 

Dial   
    Calipers ...............................  33 / 783+ 
    Clock ..................................  368 / 228+ 
        Calender combined ..................  368 / 28 
        Hands gear train ...................  368 / 221 
        With hands .........................  368 / 228 
    Distance measurement tape ..............  33 / 762+ 
    Gauge ..................................  33 / 501+ 
        Gauge or meter design ..............  D10 / 102+ 
    Handwheel ..............................  74 / 553 
    Illuminator ............................  362 / 23.01+ 
    Illuminator ............................  362 / 23.22 
        Weighing machine ...................  177 / 177+ 
    Indicating .............................  116 / 200+ 
    Indicator hand .........................  D10 / 127 
    Indicators .............................  33 / 792+ 
    Knitting multiple needle machine .......  66 / 19+ 
    Knitting pile loop formers .............  66 / 92 
    Lock operator ..........................  70 / 332 
    Micrometers ............................  33 / 794+ 
    Mirror combined ........................  359 / 439 
    Music charts ...........................  84 / 474 
    Operator ...............................  74 / 10 R+ 
    Optical element combined ...............  359 / 436+ 
    Registers cash .........................  235 / 19+ 
    Registers fare .........................  235 / 34 
        Parallel axis ......................  235 / 38 
        Single axis ........................  235 / 43 
    Registers parallel axis disk ...........  235 / 111 
    Combined ...............................  235 / 111 
    Registers single axis hand .............  235 / 112 
    Combined ...............................  235 / 112 
    Single axis ............................  235 / 120+ 
    Structure ..............................  116 / 334+ 
    Switch multiple ........................  200 / 11 R+ 
    Telephone ..............................  379 / 362+ 
        Design .............................  D14 / 246+ 
        In instrument ......................  379 / 362+ 
        System .............................  379 / 258+ 
    Teletype ...............................  341 / 35 
    Thermometers ...........................  374 / 187 
    Time stamps ............................  346 / 81+ 
    Vehicle ................................  D12 / 192 
    Watch face .............................  D10 / 123+ 

Dialyzer ...................................  210 / 321.71 
    Electroosmosis or electrophoresis ......  204 / 518+ 
    Food or edible material ................  426 
        Electrodialysis ....................  426 / 239 
    Process ................................  210 / 644+ 
        Using liquid membrane ..............  210 / 643 
    Sugar   
        Apparatus ..........................  127 / 10 
        Electrolytic .......................  205 / 697 
        Processes ..........................  127 / 54 

Diameters   
    Determining ............................  33 / 555.1+ 

Diaminotriaryl .............................  552 / 113 
    Disazo compounds .......................  534 / 677+ 

Diaminotriphenyl Methane ...................  552 / 113+ 

Diamond (See  Gems Jewel)   
    Artifical producing ....................  423 / 446+ 
    Cutting ................................  125 / 30.01 
    Earth boring tool ......................  175 / 434+ 
    Semiconductor solid state device .......  257 / 77 
        Making .............................  438 / 105 
    Single-crystal .........................  117 / 929* 
    Tool ...................................  125 / 39 
        Digest .............................  76 / DIG 12 
        Making blank or process ............  76 / 101.1+ 

Dianisidine ................................  564 / 309 

Diaper .....................................  604 / 358+ 
    Bacteria inhibitor .....................  604 / 360 
    Deodorant containing ...................  604 / 359 
    Design .................................  D24 / 126 
    Materials ..............................  604 / 367+ 
    Pail ...................................  D32 / 37 
    Securing ...............................  604 / 386 
        Adhesive ...........................  604 / 389 
        Hook-and-loop fastener .............  604 / 391 

Diaphragm   
    Acoustic structure .....................  181 / 157+ 
    Acoustic with mounting .................  181 / 148+ 
    Barrel plug ............................  217 / 111 
    Battery electric .......................  429 / 247+ 
    Camera   
        Automatic control ..................  396 / 213+ 
    Dispenser type inkwell .................  222 / 581 
    Discharge assistant ....................  222 / 581 
    Electrolytic cells .....................  204 / 252+ 
    Electrolytic electrodes ................  204 / 282+ 
    Electrolytic elements ..................  204 / 295+ 
    Electrolytic treatment of water, .......  205 / 746+ 
    Sewage, or other waste water ...........  205 / 746 
    Electrophoretic or electroosmotic ......  204 / 627+ 
    Fire tube ..............................  122 / 83 
    Flexible connecting ....................  403 / 50+ 
    Fluid pressure responsive ..............  92 / 96+ 
        Material ...........................  92 / 103 R 
        Mounting ...........................  92 / 98 R+ 
        Plural .............................  92 / 48+ 
    Galvanic cells and storage .............  429 / 247+ 
    Batteries ..............................  429 / 247+ 
    Gauge fluid pressure ...................  73 / 715+ 
    Horns ..................................  116 / 142 R 
        Vehicle energy actuated ............  116 / 59 
    Iris type valve ........................  251 / 212 
    Light valves ...........................  359 / 227+ 
    Meter fluid flow .......................  73 / 262+ 
        Casing .............................  73 / 274 
        Mounting ...........................  73 / 278 
        Structure ..........................  73 / 279+ 
    Microphone .............................  381 / 355+ 
        Ribbon .............................  381 / 176 
        Structure ..........................  181 / 158+ 
        Telephone transmitter granular .....  381 / 180+ 
    Mixer gas ..............................  48 / 184 
    Operated valve .........................  251 / 12+ 
        Barrel bung ........................  217 / 104 
        Pop ................................  48 / 53.3 
        Pop safety .........................  137 / 469+ 
    Packing rod ............................  74 / 18+ 
    Paper moulding .........................  162 / 401+ 
    Pen, fountain filling means ............  401 / 145 
    Pen-actuated means in inkwell ..........  15 / 257.072 
    Phonograph sound box ...................  181 / 161 
    Photographic ...........................  396 / 505+ 
    Piano sounding boards ..................  84 / 192+ 
    Railway vestibule connection ...........  105 / 15+ 
    Regulator fluid pressure ...............  137 / 505.36 
    Seal for a joint or juncture   
        Face or mechanical seal   
            Fluid pressure biasing .........  277 / 389 
            Secondary seal .................  277 / 391+ 
        Static article .....................  277 / 634+ 
        Static process .....................  277 / 315 
    Shutters photographic ..................  396 / 449+ 
    Switch fluid pressure ..................  200 / 83 R 
    Toys sounding ..........................  446 / 416 
    Valve ..................................  251 / 331 
        Biased .............................  137 / 540+ 
        Collapsible ........................  137 / 843+ 
        Seal ...............................  251 / 335.1+ 
    Vibrator surgical ......................  601 / 77 
    Wringer ................................  68 / 242 

Diarylketone ...............................  568 / 332 
    Amines .................................  564 / 328 
    Carboxylic acids .......................  562 / 460 

Diarylmethine Amines .......................  564 / 315+ 
    Benzhydrols or benzthiols ..............  564 / 327 
    Benzophenones or benzothiophenones .....  564 / 328 
    Diamino diphenyl methanes ..............  564 / 330+ 

Diastase ...................................  435 / 195 

Diathermy   
    Bandaging ..............................  602 / 2 
    Kinesitherapy ..........................  601 / 1+ 
    Medicators .............................  604 / 20+ 
    Orthopedics ............................  602 / 2 
    Surgical ...............................  607 / 1+ 
    Surgical instruments ...................  606 / 32+ 
    Surgical magnetic ......................  600 / 13+ 
    Surgical receptors .....................  604 / 358+ 

Diatomaceous Earth (See  Silica)   

Diazines ...................................  544 / 224+ 
    Azo compounds ..........................  534 / 767 

Diazo ......................................  534 / 588+ 
    Dye compositions .......................  8 / 664+ 
    Reactions ..............................  436 / 903* 

Diazoamino .................................  534 / 550+ 
    Dye compositions .......................  8 / 665 

Diazoles-1,2 ...............................  548 / 356.1+ 

Diazoles-1,3 ...............................  548 / 300.1+ 

Diazomethanes ..............................  534 / 558+ 

Diazonium ..................................  534 / 558+ 

Diazooxide .................................  534 / 556+ 

Diazotate ..................................  534 / 556+ 

Dibbling ...................................  111 / 89+ 
    Dibbles ................................  111 / 99 

Dibenzanthrone .............................  552 / 276 

Dibenzo?1,4!Thiazepine .....................  540 / 550 

Dice .......................................  273 / 146 
    Agitators ..............................  273 / 145 R 

Dichlorodifluoromethane ....................  570 / 134 

Dickey .....................................  2 / 103 

Dicloxacillin ..............................  540 / 327 

Dictating Machine See Sound, ...............  D14 / 154 
    Recording and reproducing ..............  D14 / 154 

DICTOGRAPH™    (See  Phonograph)   

Dicyandiamide ..............................  564 / 104 
    Electrolytic synthesis   
        Aqueous bath .......................  205 / 433 
        Fused bath .........................  205 / 355 
    Salt ...................................  260 

Dicycle ....................................  280 / 208 

Die (See  Mold)   
    Cutting ................................  83 
        Fence barbs ........................  29 / 7.1 
        Punching ...........................  83 
        Saw tooth forming ..................  76 / 29 
        Saw tooth sharpening ...............  76 / 30 
        Sheets and bars ....................  83 
        Tobacco stem .......................  131 / 323 
        Tobacco wrapper ....................  83 
    Electroforming .........................  205 / 70 
    Expressing   
        Bread, pastry, confection ..........  425 / 287+ 
        Bread, pastry, confection ..........  425 / 381.2 
        Bread, pastry, confection ..........  425 / 461+ 
        Cores founding .....................  164 / 174 
        Earthenware ........................  425 / 376.1+ 
        Earthenware ........................  425 / 461+ 
        Metal plastic ......................  72 / 253.1+ 
        Plastics ...........................  425 / 381.2 
        Soap ...............................  425 / 289+ 
        Soap ...............................  425 / 340+ 
        Soap ...............................  425 / 383+ 
    Foodstuff cutting   
        Reciprocating ......................  83 / 613 
        Rotary .............................  83 / 591 
    Forming ................................  76 / 4 
        Machines ...........................  72 
    Holder   
        Metal shaping ......................  72 / 462+ 
        Sheet punching .....................  83 
    Horseshoe making .......................  59 / 60 
    Machinery part .........................  D15 / 138 
    Metal   
        Bolt, nail, nut, rivet, screw ......  470 / 183+ 
        Making .............................  470 / 183 
        Casting ............................  29 / DIG 10 
        Chain welding ......................  59 / 33 
        Coiling spiral .....................  72 / 141 
        Deforming ..........................  72 / 462+ 
        Design .............................  D15 / 136+ 
        Forging anvil adjustable ...........  72 / 418 
        Forging presses enclosed ...........  72 / 343+ 
        Horseshoe ..........................  59 / 60 
        Injecting ..........................  164 / 303+ 
        Process for making .................  76 / 107.1+ 
        Screw threading platen .............  72 / 88 
        Through-die ........................  72 / 467+ 
        Wire cutting .......................  83 
        Wire joining .......................  140 / 116 
        Work-orbiting screw threader .......  72 / 191+ 
    Paper box ..............................  493 / 167+ 
    Punches   
        Sheets and bars ....................  83 
        Wood match making ..................  144 / 53 
        Woodworking ........................  144 / 197 
    Punching dies ..........................  83 / 651+ 
        Screw threads ......................  72 / 88+ 
    Shaping   
        Closure applying ...................  53 / 341+ 
        Embossing members ..................  101 / 16+ 
        Metal can seaming ..................  413 / 31+ 
        Metal sheet shaping ................  72 / 462+ 
        Printing embossing hot .............  101 / 8+ 
        Stretch press ......................  72 / 302 
        Wire fabric ........................  140 / 107 
    Shoe sole ..............................  12 / 38 
    Textile ................................  57 / 138 

Dielectric   
    Capacitive .............................  219 / 764 
    Capacitors in ..........................  361 / 301.1+ 
    Fluent compositions ....................  252 / 570+ 
        Hydrocarbon ........................  585 / 6.3 
    Hygrometer .............................  324 / 666 
    Lens ...................................  333 / 248+ 
    Microwave heating apparatus ............  219 / 678+ 

Diels Alder Synthesis (See Diene   
    Synthesis)   
    Hydrocarbon synthesis ..................  585 / 361 

Diene Synthesis   
    Higher unsaturated fatty acid ..........  554 / 124+ 
    Maleic acid ............................  562 / 498+ 
    Maleic acid anhydride ..................  549 / 262 
        Carbocylic compound ................  549 / 234+ 
    Polymerization .........................  585 / 507+ 
    Rosin ..................................  530 / 214 

Diet Managed By Computer ...................  128 / 921* 

Differential   
    Gearing   
        Cash register key operated .........  235 / 14+ 
        Change speed and ...................  475 / 198+ 
        Conveyers having different .........  198 / 792 
        Speed zones ........................  198 / 792 
            Plural conveyer sections .......  198 / 577 
            Plural sections with differing .  198 / 579 
            Speeds .........................  198 / 579 
        Multiple driving motors ............  475 / 1+ 
        Planetary ..........................  475 / 220+ 
        Register single axis ...............  235 / 119 
        Register transfer mechanism ........  235 / 136 
        Sectional rotary bodies ............  74 / 444 
        Speed responsive device ............  73 / 507 
    Gearless ...............................  74 / 650 
    Material treatment   
        Comminution of mixed solids ........  241 / 14 
        Sorting pretreatment ...............  209 / 4+ 
    Mechanism   
        Brake operator movement ............  188 / 134 
        Chemical feed pressure control .....  137 / 100+ 
        Fire extinguisher automatic ........  169 / 22 
        Valve ..............................  169 / 22 
        Flow meter pressure type ...........  73 / 861.42+ 
        Railway draft springs ..............  213 / 26+ 
        Sewing machine stitch forming ......  112 / 312+ 
        Feed ...............................  112 / 312+ 
        Ships logs pressure type ...........  73 / 182+ 
        Telegraph system duplex ............  370 / 284 
        Telephone transmitter ..............  381 / 355+ 
        Electrodes .........................  381 / 355+ 
    Motor ..................................  91 / 415+ 
    Motor vehicle with .....................  180 / 76 

Differential Amplifier .....................  330 / 69 

Differentiating Circuit ....................  333 / 19 
    Calculators having .....................  235 / 61 R+ 
    Miscellaneous electronic device ........  327 / 335 
    Type ...................................  327 / 335 

Diffraction ................................  359 / 558+ 
    Grating ................................  359 / 566+ 

Diffuser   
    Slow diffuser holder ...................  239 / 34+ 
    Sugar making ...........................  127 / 3+ 
        Processes ..........................  127 / 43+ 

Diffusing See Extracting   
    Air sterilizing ........................  422 / 120+ 
    Aircraft structure .....................  244 / 136 
    Cabinets ...............................  312 / 31+ 
    Coating by vapor, pack process .........  427 / 252 
    Dopant in semiconductor ................  438 / 542+ 
    Fans ...................................  416 
    Fumigators .............................  422 / 305+ 
    Gases for separation   
        Apparatus ..........................  96 / 4 
        Process ............................  95 / 43 
        Thermal diffusion ..................  95 / 289 
        Thermal diffusion process ..........  95 / 289 
    Liquids through membranes ..............  210 / 634+ 
    Sacchariferous material ................  127 / 3+ 
    Sprinkling and spraying ................  239 
    To alter dry etching ...................  216 / 62 
    Characteristics ........................  216 / 62 
    To alter wet etching ...................  216 / 87 
    Characteristics ........................  216 / 87 

Digallic Acid ..............................  560 / 70 

Digester & Digestion See Extracting   
    Apparatus ..............................  422 / 307+ 
    Fermentative ...........................  435 
    Liquid purification ....................  210 / 601+ 
    Mineral oils ...........................  208 / 46+ 
    Pulp apparatus .........................  162 / 233+ 
    Pulp processes .........................  162 / 1+ 
    Still combined .........................  202 / 107 

Digger .....................................  171 
    Design .................................  D15 / 10+ 
        Hand tool ..........................  D08 
    Ditcher ................................  37 / 347+ 
        Elevator ...........................  414 / 596+ 
    Dredger ................................  37 / 307+ 
    Endless excavator ......................  37 / 462+ 
    Fire arm combined ......................  42 / 93 
    Posthole   
        Implement ..........................  294 / 50.6+ 
        Machine ............................  175 
    Potato .................................  171 
    Rotary excavator .......................  37 / 189+ 
    Tunnel excavating ......................  299 / 29+ 

Digital   
    Clock ..................................  D10 / 15 
    Motor art digest .......................  91 / DIG 1 
    Readouts ...............................  73 / 901* 

Digital Data (See Computer,   
    Electrical)   
    Communications .........................  375 
    Computer systems, general ..............  703 
    Error correction .......................  714 / 746+ 
    Synchronous transmission ...............  375 / 354+ 

Digital Media Player .......................  D14 / 203.1+ 
    Transmission of coded intelligence .....  178 / 2 B 

Digital Memory .............................  365 

Digital Rights Management (Drm) ............  705 / 901+ 
    Speech reproduction from ...............  704 / 258+ 
    With encryption ........................  705 / 50+ 

Digitalis Glycosides .......................  536 / 6.1 

Dihydroabietic Acid ........................  562 / 404 

Dihydronovobiocin ..........................  536 / 13 

Dihydrostreptomycin ........................  536 / 15 

Dihydrotachysterol .........................  552 / 653 

Diketo Purines .............................  544 / 267+ 

Diketopyrimidines ..........................  544 / 309+ 

Dilatometry ................................  374 / 55 

Dilator   
    Surgical instruments ...................  606 / 191+ 
    Surgical instruments combined ..........  606 

Diluents Coating Compositions ..............  106 / 311 

Dimer (See  Polymerization)   

Dimmer for Lamps ...........................  362 / 257+ 
    Headlight systems ......................  315 / 82+ 
    Lamp systems ...........................  315 / 291+ 
    Structure ..............................  323 / 905* 

Dimpling Sheet Metal .......................  72 / 414+ 
    Testing ductility by ...................  73 / 87 

Dinas Brick ................................  501 / 141 

Dining Car .................................  105 / 327 

Dining Room Store Service ..................  186 / 38+ 

Dinitroanthraquinones ......................  552 / 254 

Dinitroethylene Urea .......................  548 / 322.1 

Diode ......................................  313 
    Beam power amplifier ...................  313 / 298 
        With two cathodes ..................  313 / 5 
    Damping ................................  313 / 317 
        With emissive cathode ..............  313 / 310 
        With thermionic cathode ............  313 / 310 
        With two cathodes and anodes .......  313 / 1 
    Duo pentode ............................  313 / 298 
        Triode .............................  313 / 303 
    Duplex hi mu triode ....................  313 / 303 
        With two cathodes ..................  313 / 5 
    Duplex pentode .........................  313 / 298 
        With plural cathodes ...............  313 / 5 
    Duplex triode ..........................  313 / 303 
        With plural cathodes ...............  313 / 5 
    Duplex twin ............................  313 / 307 
    Glow discharge .........................  313 / 567+ 
    High mu triode .........................  313 / 303 
        With two cathodes ..................  313 / 5 
    Light emitting .........................  362 / 800* 
    Pentode ................................  313 / 298 
        With two cathodes ..................  313 / 5 
    Power amplifier pentode ................  313 / 298 
        With two cathodes ..................  313 / 5 
    R f ....................................  313 / 317+ 
        With emissive cathode ..............  313 / 310 
        With thermionic cathode ............  313 / 310 
    Sharp cutoff pentode ...................  313 / 298 
        With two cathodes ..................  313 / 5 
    Testing (nonquantitative) ..............  324 / 762.07 
    Triode pentode .........................  313 / 298 
        With plural cathodes ...............  313 / 6 
    Triple .................................  313 / 1 
    Triple high mu triode ..................  313 / 303 
        With plural cathodes ...............  313 / 5 
    Triple triode ..........................  313 / 303 
        With plural cathodes ...............  313 / 5 
    Twin ...................................  313 / 306 
        With two cathodes ..................  313 / 1 

Diolefin Hydrocarbon .......................  585 / 16+ 
    Purification ...........................  585 / 800+ 
    Synthesis of ...........................  585 / 601+ 

Dioramas ...................................  472 / 57+ 

Dioxane ....................................  549 / 377 

Dioxazine ..................................  544 / 63+ 

Dioxazoles .................................  548 / 124 

Dioxirane ..................................  549 / 200 

Dip Pipe ...................................  202 / 255+ 

Dip-Cup-Provided Inkwell ...................  15 / 257.07+ 
    Dispenser type .........................  222 / 576+ 

Diphenoquinone .............................  552 / 304 

Diphenylene Hydantoin ......................  548 / 301.1 

Dipole Antenna .............................  343 / 793+ 

Dipper   
    Excavators .............................  414 / 685+ 

Dipping See Coating   
    Animals ................................  119 / 673+ 
    Apparatus for molding ..................  425 / 269+ 
        Molds or forms .....................  425 / 275 
    Channel pumps ..........................  415 / 88+ 
    Hat ....................................  223 / 10 
    Match making ...........................  144 / 60 
        Cutting and framing combined .......  144 / 52+ 
        Frames .............................  144 / 62+ 
        Framing combined ...................  144 / 58 
    Processes for forming by ...............  264 / 301+ 
    Trap chamber dispensing ................  222 / 356+ 
        Endless belt .......................  222 / 371 
        Rotary .............................  222 / 369 

Dips Animal ................................  424 

Direct Current Distribution ................  307 
    Pulsating telegraph systems ............  178 / 66.1+ 
    Transmission to vehicles ...............  191 

Direction   
    Radio signaling ........................  342 / 350+ 

Direction Indicator   
    Design .................................  D10 / 65+ 
    Earth boring combined ..................  175 / 45 
    Fluid flow velocity combined ...........  73 / 170.01+ 
    Geographical ...........................  33 / 320 
    Navigation .............................  73 / 178 R 
    Radar ..................................  342 / 147 
    Register fare ..........................  235 / 48 
    Ships course ...........................  116 / 19 
    Traffic   
        Barrier ............................  404 / 6+ 
        Director ...........................  404 / 9+ 
    Vehicle ................................  116 / 35 R+ 
        Design .............................  D26 / 28+ 
        Electrically operated system .......  340 / 465 

Director Antenna ...........................  343 / 912+ 

Dirigible ..................................  244 / 24+ 

Disappearing Instrument Cabinet ............  312 / 21+ 

Disassembly (See  Assembling)   
    Apparatus ..............................  29 / 700+ 
    Processes ..............................  29 / 426.1+ 
        Battery ............................  29 
    Repairing combined .....................  29 / 402.03+ 

Disc Recording or Reproducing   
    Player or recorder .....................  D14 / 498+ 

Disconnecting Devices   
    (See  stop mechanism)   

Discus .....................................  482 / 21 

Dish (See  Cup; Tray) ......................  215 
    Butter refrigerating ...................  62 / 457.6 
        Design, general ....................  D07 / 502 
        Design, refrigerating ..............  D15 / 89 
    Cleaner   
        Brushing ...........................  15 / 74 
        Liquid contacting ..................  134 
    Compartmented ..........................  D07 / 555 
    Cover ..................................  215 / 200+ 
    Covered ................................  D07 / 538 
    Design .................................  D07 / 500+ 
    Design, simulative .....................  D07 / 571+ 
    Drainer   
        Compartmented ......................  220 / 572+ 
        Rack ...............................  211 / 41.1 
            Drying .........................  211 / 41.3 
            Foldable or collapsible ........  211 / 41.5 
        Wire receptacle ....................  220 / 487 
    Heater .................................  126 / 246 
    Making   
        Clay ...............................  425 / 263+ 
        Clay ...............................  425 / 459 
        Paper and paper board ..............  162 / 387+ 
        Sheet metal container ..............  413 
    Stand ..................................  248 / 128+ 
        Design .............................  D06 / 310+ 
    Washer .................................  134 
        Design .............................  D32 / 2+ 

Disher   
    Ice cream cone .........................  425 / 118 
    Ice cream scoops .......................  425 / 221 
    Ice cream scoops .......................  425 / 276+ 

Dishwasher .................................  D32 / 2+ 
    Dishwashing racks ......................  D32 / 55 

Disinfectants & Disinfecting ...............  422 
    Apparatus for treating air .............  422 / 120+ 
    Baths closets sinks and spittoons ......  4 / 222+ 
        Sewer ..............................  4 / 220 
        Spittoon ...........................  4 / 261 
        Strainer or stopper cover ..........  4 / 294 
        Urinal .............................  4 / 309+ 
    Cabinet combined .......................  312 / 31 
    Disinfectants ..........................  424 
    Dispenser for flush closet .............  4 / 222+ 
    Electrolytic ...........................  205 / 701 
    Ozonizer ...............................  422 / 186.07+ 
    Preparation and distribution ...........  43 / 127 
        Animal treating ....................  119 / 650+ 
        Dusters or sprayers ................  239 
        Fumigators vermin destroying .......  43 / 125+ 
        Intermittent discharge type ........  422 / 123+ 
    Receptacle attachment ..................  220 / 87.1+ 
    Telephone attachment ...................  379 / 452 
    Thermometer case .......................  206 / 306 
    Tobacco ................................  131 / 290 
        Electrical or radiant energy .......  131 / 299 
    Vapor and fume generator ...............  422 / 305+ 

Disintegrator (See Comminuting; ............  241 
    Crusher) ...............................  241 
    Etching with electric arc ..............  219 / 68+ 
    Machining with electron beam ...........  219 / 68 
    Paper fiber ............................  241 
    Peat ...................................  44 / 633 
    Rock in situ ...........................  299 
    Sugar treatment combined ...............  127 / 4 
    Textile fiber preparation ..............  19 / 82+ 
    Tobacco leaf ...........................  131 / 311+ 
        Feeding combined ...................  131 / 109.1 

Disk   
    Abrading ...............................  451 / 548+ 
    Agricultural implement .................  172 / 518+ 
        Bearing for ........................  384 / 460 
        Bearing support for ................  384 / 157 
        Harvester cutter ...................  56 / 255+ 
        Harvester cutter with conveyor .....  56 / 157+ 
        Hedge trimmer ......................  56 / 235 
        Planting by drilling ...............  111 / 163+ 
        Plow moldboard .....................  172 / 167 
        Scraper for ........................  172 / 558+ 
        Sharpener combined .................  172 / 437 
    Amusement roundabout ...................  472 / 40+ 
    Animal powered motor ...................  185 / 18 
    Brake ..................................  188 / 71.1+ 
        For railway vehicle ................  188 / 58+ 
        For velocipede .....................  188 / 26 
    Brush rotary ...........................  15 / 180 
        Boot clean black and polish ........  15 / 34+ 
        Handle mount .......................  15 / 28+ 
        Street sweeper .....................  15 / 87 
    Calendar ...............................  40 / 113+ 
    Carbon black making collector ..........  422 / 150+ 
    Card exhibitor .........................  40 / 495+ 
    Cathode ray tube stream ................  313 / 441+ 
    Concentrator ...........................  313 / 441+ 
    Clock geographical .....................  368 / 27 
    Closure seal ...........................  292 / 308+ 
    Comminuting and grinding   
        Abrading tool ......................  451 / 490+ 
        Cherry stoner ......................  99 / 566 
        Comminutor .........................  241 
        Corn shellers ......................  460 / 45 
        Disc grinding ......................  451 
        Floor surfacing machine ............  451 / 350+ 
        Grain huller .......................  99 / 600+ 
        Scouring machine ...................  451 / 66+ 
    Counting mechanism .....................  235 / 98 R 
        Coin ...............................  453 / 58+ 
    Cutting   
        Annular drills .....................  408 / 204 
        Barrel stave jointing cutter .......  147 / 29 
        Button cutting .....................  79 / 16 
        Can opener .........................  30 / 435 
        Earth boring tool ..................  175 / 373 
        Pipe cutter external ...............  30 / 101+ 
        Portable auger .....................  408 / 204 
        Roller hand tool ...................  30 / 307 
        Saw sharpening .....................  76 / 45 
        Stone sawing .......................  125 / 20 
        Sweep auger ........................  408 / 199+ 
        Tool sharpener .....................  76 / 82 
        Tubular saw wood ...................  408 / 204+ 
        Wood ...............................  408 / 204 
        Wood dovetailing ...................  144 / 89 
        Wood planer rotary cutter ..........  144 / 118+ 
        Wood sawing knife disc .............  83 / 469+ 
        Wood turning chisel feed ...........  142 / 44 
        Pattern ............................  142 / 44 
    Dynamic optical information storage ....  720 / 718+ 
    Storage or retrieval ...................  720 / 718+ 
    Educational elements ...................  434 / 402 
    Electric conductor insulation ..........  174 / 111 
    Electric generator armature ............  310 / 268+ 
    Electrode consumable ...................  314 / 44 
    Evaporator moving film support .........  159 / 9.1+ 
    Feed for wood lathe ....................  142 / 19 
    Feed for wood saw mill carriage ........  83 / 403.1 
    Feeder for nails .......................  470 / 164+ 
    Flowmeter variable restriction .........  73 / 861.55+ 
    Fluid distributor rotary ...............  239 / 224 
    Gas and liquid contact impeller ........  261 / 84+ 
    Gear sectional body ....................  74 / 444+ 
    Gearing frictional wheel and ...........  476 / 57+ 
    Laminated fabric disk making ...........  156 
    Magazines for target ...................  124 / 46+ 
    Making or working by rolling ...........  72 / 67 
    Metal ..................................  72 / 67+ 
    Metal rolling apparatus with ...........  72 / 80 
    Disk platen ............................  72 / 80+ 
    Motion picture .........................  352 / 102+ 
    Paper closure assembling with ..........  493 / 108 
    Container ..............................  493 / 108 
    Projectile holders .....................  124 / 42+ 
    Railway wheels .........................  295 / 1+ 
    Recorder record receiver ...............  346 / 137 
    Recording and reproducing   
        Compact disk .......................  369 / 275.1+ 
            Player .........................  369 / 100+ 
        Floppy disk ........................  360 / 97.11 
            Player .........................  360 / 99.01+ 
        Optical disk .......................  369 / 275.1+ 
            Player .........................  369 / 100+ 
    Shaft coupling yielding element ........  464 / 98+ 
        Non metallic .......................  464 / 92+ 
    Sound record ...........................  369 / 272.1+ 
        Apparatus for molding with .........  425 / 500 
        Label applying .....................  425 / 500+ 
    Stacking racks for .....................  211 / 49.1 
    Vehicle land wheel .....................  301 / 63.101+ 
        Making .............................  29 / 894.32+ 

Dislodging of Anchors ......................  114 / 297 

Dispatch Pneumatic .........................  406 

Dispatching of Trains ......................  246 / 2 R+ 

Dispensing (See  Notes to Main Class) ......  222 
    Articles ...............................  221 
    Beverage and food machines .............  D07 / 300+ 
    Cabinet   
        Article ............................  221 
        Mixed drinks .......................  222 / 129.1+ 
        Spool holder and thread cutter .....  83 
        Tearing ............................  225 
        Twine holder with cutter ...........  83 
    Coin handling ..........................  453 
    Confetti ...............................  446 / 475 
    Container tearing to form spout ........  229 / 213+ 
    Dental apparatus .......................  433 / 80+ 
    Deposit & collection receptacles .......  232 
    Device with wheels, skids, etc .........  222 / 608+ 
    Filling portable receptacles with ......  141 
    Fluent material ........................  141 
    Fire extinguishers .....................  169 
    Gas dispensing article .................  222 / 3+ 
    Inkwell ................................  222 / 576+ 
    Molten metal ...........................  222 / 591+ 
        Continuous casting .................  164 / 437+ 
    Planting apparatus .....................  111 / 25+ 
    Refrigerated liquids ...................  62 / 389+ 
    Roll holder ............................  242 / 590+ 
    Sprinkling, spraying, & diffusing ......  239 
    Fluids .................................  239 
    Store dispensing service ...............  186 
    Tape   
        Gummed .............................  83 
        Length measuring ...................  33 / 732+ 
        Length measuring with cutting ......  83 / 522.11+ 
        Magazine type dispenser ............  312 / 34.1+ 
        Roll or spool ......................  206 / 389+ 
        With fixed severing edge ...........  225 
    Track sanders ..........................  291 
    Trap chambers ..........................  222 / 424.5+ 
        Movable or conveyer type ...........  222 / 344+ 
    Unwinding ..............................  242 / 550+ 
    Vending machines .......................  D20 / 1+ 
    Web or strand feeding ..................  242 / 364+ 

Dispersing (See Colloids;Emulsifying)   
    Agents .................................  516 
        Non-colloid-sized ..................  252 / 363.5 
        Solids combined with ...............  252 / 363.5 
    Agitating ..............................  366 
    Colloid, radioactive ...................  252 / 634+ 
    Compositions including agents for   
        Bituminous material ................  106 / 278 
        Carbohydrate gum ...................  106 / 144.1+ 
        Casein .............................  106 / 159.1 
        Cellulose ..........................  106 / 136.1 
        Glue or gelatine ...................  106 / 160.1 
        Natural resin ......................  106 / 236+ 
        Pigments ...........................  106 / 499+ 
        Prolamine ..........................  106 / 161.1 
        Protein ............................  106 / 124.1+ 
        Starch .............................  106 / 145.1+ 
        Synthetic resin (see class 523,   
        524)   
        Wax ................................  106 / 271 
    Dyes including agents for ..............  8 
    Fermentation apparatus .................  435 / 283.1+ 
        Foam control .......................  435 / 301.1 
    Medium for coating or plastic ..........  106 / 311 
    Compositions ...........................  106 / 311 
    Solid disintegrating ...................  241 

Display ....................................  361 / 679.21 

Display ....................................  361 / 679.3 
    Animated ...............................  345 / 473+ 
        Generation .........................  345 / 467+ 
    Attribute ..............................  345 / 581 
    Bank counters ..........................  109 / 10+ 
    Boxes ..................................  217 / 11 
        Closures hinged ....................  217 / 58 
        Compartmented ......................  217 / 10 
        Design .............................  D09 / 414+ 
        Folding ............................  217 / 9 
        Sliding closure ....................  217 / 63 
    Cabinet ................................  312 / 114+ 
        Frozen food,produce or meat ........  D06 / 657+ 
        With display opening ...............  312 / 234 
    Card ...................................  40 / 124.01+ 
    Card picture and sign ..................  40 
        Design .............................  D20 / 10+ 
        Design misc ........................  D20 / 10+ 
    Cathode ray tube .......................  345 / 10+ 
        Housing or mounting assembly .......  361 / 679.61 
    Changeable exhibitor ...................  40 / 446+ 
    Computer graphics ......................  345 / 418+ 
    Container convertible for storage ......  206 / 44 R 
    Device with gas or liquid movement .....  40 / 406+ 
    Drying apparatus combined ..............  34 / 88 
    Easels .................................  248 / 441.1+ 
    Educational devices ....................  434 / 365 
    Electroluminescent .....................  315 / 169.3 
    Electrophotographic copier .............  399 / 81 
    Envelopes ..............................  229 / 71 
    Forms ..................................  D20 / 10+ 
    Furniture   
        Design .............................  D06 
    Garment forms ..........................  223 / 66+ 
    Gas panel ..............................  315 / 169.4 
    Heads up ...............................  345 / 7 
    Housing or mounting assembly with   
    Electrical devices   
    Integrated with circuit ................  345 / 205+ 
    Letters sheets .........................  229 / 92.3 
    Light systems electric control .........  340 / 286.01+ 
    Liquid crystal structure ...............  349 / 1+ 
    Matrix .................................  345 / 55+ 
    Monogram ...............................  345 / 33+ 
    Operator interface .....................  715 / 700+ 
    Optical projection screen   
        For confirmation of food order .....  705 / 15 
        For optical projection screen ......  705 / 411 
        Products sold on internet ..........  705 / 27.1+ 
    Packages ...............................  206 / 44 R+ 
    Photographic ...........................  355 / 18 
    Printed advertising ....................  283 / 56 
    Racks ..................................  211 
        For picture or business card .......  40 / 124 
    Receptacles ............................  206 / 44 R+ 
    Refrigerators ..........................  62 / 246+ 
        Open access ........................  62 / 458 
    Screen saver ...........................  715 / 867 
    Show cases .............................  312 / 114+ 
    Stands .................................  261 / DIG 14 
    T v channel ............................  348 / 569 
    Three dimensional movable figure .......  40 / 411+ 
    Timepiece ..............................  368 / 223+ 
    Trays ..................................  206 / 557+ 
    Vehicle body feature ...................  296 / 21 
    Video ..................................  348 / 739+ 
    Wooden containers ......................  217 / 9+ 
    Wrappers ...............................  229 / 92.3 

Disposal   
    Closet sink spittoon ...................  4 
    Crematory ..............................  110 / 194 
    Cutlery combined .......................  30 / 124+ 
    Destruction or containment of ..........  588 / 1+ 
    Radioactive waste ......................  588 / 1+ 
    Incinerator ............................  110 / 235+ 
    Incinerator garbage ....................  110 / 235+ 
    Nuclear radioactive waste ..............  976 / DIG 375+ 
    Razor combined .........................  30 / 41 
    Receptacles collection .................  232 
    Sewage treatment .......................  210 
    Sewerage ...............................  137 

Disproportionation   
    Alicyclic hydrocarbon synthesis ........  585 / 375+ 
    Aromatic synthesis .....................  585 / 470+ 
    Hydrogen exchange see   
    Dehydrogenation; hydrogenation   
    Olefin synthesis .......................  585 / 643+ 
    Paraffin synthesis .....................  585 / 708 

Dissemination (See  Scattering)   

Dissolves in Motion Pictures ...............  352 / 91 R 

Dissolving (See  Solvent) ..................  423 / 658.5 
    Actinide series compounds ..............  423 / 249+ 
    Inorganic compounds ....................  423 / 210+ 
    Solids to produce cooling ..............  62 / 4 

Distance Measuring Devices .................  33 / 700+ 
    Computerized ...........................  705 / 417 
    Speed integrator .......................  73 / 490 

Distillation   
    Apparatus ..............................  202 
    Azeotropic .............................  203 / 50+ 
    Beverages alcoholic ....................  426 
    Bromine or iodine ......................  423 / 500 
    Chemical apparatus combined ............  422 / 610+ 
    Convertive .............................  203 / 49 
    Distillate treatment (see  vapor)   
        Destructive distillation ...........  201 / 29 
        Distillation combined ..............  203 
        Mineral oils .......................  208 / 349 
    Extractive .............................  203 / 50+ 
    Filming ................................  203 / 89 
    Filming ................................  203 / 72 
    Flash ..................................  203 / 88 
    Fluidized bed ..........................  201 / 31 
    Heating and illuminating gas ...........  48 
    Mineral oils ...........................  208 / 347+ 
        Conversion combined ................  208 / 46+ 
        Rectification ......................  208 / 350+ 
    Separatory .............................  203 
    Stills .................................  202 / 81+ 
        Mineral oil ........................  196 / 104+ 
    Thermolytic ............................  201 

Distillery   
    Waste as fertilizer ....................  71 / 26 
        Stock feed .........................  426 / 635 

Distortion Bucking in an Amplifier .........  330 / 149 

Distortion Control   
    Amplification ..........................  330 
    Amplitude modulation ...................  332 / 159+ 
    Frequency modulation ...................  332 / 123+ 
    Metal deforming ........................  72 / 701* 
    Pulse modulation .......................  332 / 107 
    Telegraphy .............................  178 / 69 A 
    Telephone circuit ......................  379 / 414 
    Wave transmission lines and ............  333 
    Networks ...............................  333 

Distributing Material   
    Ammunition filamentary material ........  102 / 504+ 
    Bolt nail nut rivet screw making .......  470 / 164+ 
    Coating implement with .................  401 
    Material supply ........................  401 
    Conveyer power driven thrower ..........  198 / 638+ 
    Conveyer thrower powerdriven ...........  198 / 638+ 
    Data processing for business using .....  705 / 51 
    Encryption .............................  705 / 51 
        Copy protection or prevention ......  705 / 57 
            Using a program or origin ......  705 / 58 
            Identifier .....................  705 / 58 
        Licensing ..........................  705 / 59 
        Requiring additional user input ....  705 / 55 
        For authorization ..................  705 / 55 
            Specific computer id ...........  705 / 56 
        With usage or charge ...............  705 / 52 
        Determination ......................  705 / 52 
            Multi-layered rights for use ...  705 / 54 
            Third party billing ............  705 / 53 
    Distilland in retort ...................  201 / 40 
    Drying   
        Agitators ..........................  34 / 241+ 
        Drum rotary ........................  34 / 130+ 
        Kilns ..............................  34 / 218+ 
        Kilns plural .......................  34 / 210+ 
        Processes ..........................  34 / 376+ 
        Stationary receptacle ..............  34 / 466 
    Ensilage ...............................  406 / 164+ 
    Fluid centrifugal ......................  239 / 214+ 
    Gear worm ..............................  74 / 427 
    Gearing pressure .......................  74 / 410 
    Hay ....................................  414 / 25 
    Letter boxes compartment ...............  232 / 26 
    Mobile orchard type ....................  239 / 77+ 
    Pamphlets from aircraft ................  40 / 216 
    Pastry machine combined ................  425 / 289+ 
    Railway track layers ...................  104 / 5+ 
    Road material ..........................  404 / 101+ 
    Scattering unloader ....................  239 / 650+ 
    Sifters ................................  209 / 254 
    Stratifiers ............................  209 / 498 
    Type cases .............................  276 / 44+ 
    Type casting machine ...................  199 / 33+ 
    Type casting machine combined ..........  199 / 14+ 
    Type setting machine ...................  276 / 22+ 
    Type setting machine combined ..........  276 / 2+ 

Distribution   
    Boxes for electric conductors ..........  174 / 50+ 
    Coupons, electronic ....................  705 / 14.1+ 
    Data processing for business ...........  705 / 51 
    Using encryption .......................  705 / 51 
        Copy protection or prevention ......  705 / 57 
            Using a program or origin ......  705 / 58 
            Identifier .....................  705 / 58 
            Licensing ......................  705 / 59 
            Requiring additional use input .  705 / 55 
            For authorization ..............  705 / 55 
            Specific computer id ...........  705 / 56 
    Electric current .......................  307 
    Fluid see ventilation   
        Gas or mist ........................  102 / 367+ 
        Handling ...........................  137 
        Motors expansible chamber ..........  91 
        Motors valve actuation .............  91 
        Nozzles ............................  239 
        With usage or charge ...............  705 / 52 
        Determination ......................  705 / 52 
            Multi-layered rights for use ...  705 / 54 
            Third party billing ............  705 / 53 
    Gas in gas mains .......................  48 / 190+ 
    Inventory ..............................  705 / 28 
        Itemization ........................  705 / 29 

Distribution Amplifier .....................  330 / 54 

Distributor Electric   
    Auto ...................................  200 / 6 R+ 
        Ignition circuit ...................  315 / 210 
        Ignition system ....................  123 / 146.5 R+ 
    Conductors   
        Combined ...........................  174 / 73.1 
        Overhead ...........................  174 / 43 
        Underground ........................  174 / 38 
    Ignition   
        Structure ..........................  200 / 19.06+ 
        System .............................  123 / 143 R+ 
        System .............................  315 / 211+ 
    Insulators combined ....................  174 / 140 R 
    Signalling transmitters ................  341 / 192 
    Switch multiple circuit ................  200 / 1 R+ 
    Switch periodic ........................  200 / 19.33+ 
    Systems miscellaneous ..................  307 
    Telegraphy multiplex ...................  370 / 303+ 
    Telephone switchboards .................  379 / 319+ 
    Transmission to vehicle ................  191 / 2+ 
    X ray tubes potential stress ...........  378 / 139 

Ditch Filler ...............................  37 / 142.5 

Ditcher ....................................  37 / 347+ 
    Elevator ...............................  414 / 596+ 
    Filler .................................  37 / 142.5 

Dithiazoles ................................  548 / 123 

Dithionites   
    Reducing composition ...................  252 / 188.22 

Dithiosulfurous Acid Esters ................  560 / 310 

Diversity Receiver .........................  455 / 132+ 

Divider   
    Assorter discharging ...................  209 / 493 
    Dough, severing apparatus general ......  225 / 93 
    Fleece .................................  19 / 151 
    Fluid flow porportional ................  137 / 118.01+ 
    Gauges point markers ...................  33 / 665 
        Center .............................  33 / 670+ 
        Proportional .......................  33 / 663+ 
    Harvester track clearing ...............  56 / 314 
    Opposed contact ........................  33 / 558.01+ 
    Road ...................................  404 / 6+ 
    Scribing ...............................  33 / 18.1+ 

Diving Apparatus ...........................  405 / 185+ 
    Artificial gill ........................  128 / 200.25 
    Board ..................................  482 / 30+ 
        Design .............................  D21 / 802 
    Helmets ................................  2 / 2.14+ 
    Suits ..................................  2 / 2.14+ 
        Air or oxygen supply ...............  128 / 201.29+ 
        Buoyant or swimming feature ........  441 / 88+ 
        Submarine working device ...........  405 / 186+ 

Divining Rods ..............................  324 / 800* 

Dobby Loom .................................  139 / 66 R+ 
    Griff vibrating ........................  139 / 67 

Dock   
    Drydocks ...............................  405 / 4+ 
        Floating ...........................  114 / 45+ 

Docketing, Computerized ....................  705 / 7.13+ 

Doctor Blade (See Device or   
    Apparatus with which associated)   
    Electrophotographic copier .............  399 / 274+ 
    Electrophotographic copier .............  399 / 284 

Document ...................................  283 
    Creation ...............................  703 
    Editing ................................  715 / 255+ 
    Formatting .............................  715 / 243+ 
    Handling   
        Electrophotographic copier .........  399 / 361+ 
    Holder   
        Electrophotographic copier .........  399 / 377+ 
    Sales ..................................  283 / 60.1+ 
    With image .............................  715 / 200 

Documentation Computer Application .........  704 / 1+ 

Doffing   
    Bobbin and cop winding combined ........  242 / 473.4+ 
    Carding combined .......................  19 / 106 A 
    Conveyer section .......................  198 / 622 
    Ginning combined   
        Delinters ..........................  19 / 42+ 
        Saw ................................  19 / 58+ 
    Magnetic solids separator or ...........  209 / 229 
    Classifier combined ....................  209 / 229+ 
    Spinning, twisting, or twining .........  57 / 266+ 
    Combined ...............................  57 / 266+ 
        Preparation for ....................  57 / 276+ 
    Vegetable cutter or comminutor   
    Combined   
        Parer and corer ....................  99 / 542 
        Parer corer and segmenter ..........  99 / 543 
        Parer corer and slicer .............  99 / 543 
        Peeler or parer ....................  99 / 588+ 

Dog   
    Collar .................................  119 / 856+ 
        Design .............................  D30 / 152 
        With leash or tether ...............  119 / 792+ 
    Driven ratchet bar combined ............  74 / 169 
    Foodstuff ..............................  D01 
    For bolt ...............................  70 / 467+ 
    Furnace fire ...........................  126 / 298 
    Harness ................................  54 
    House ..................................  D30 / 108+ 
    Kennels ................................  119 / 482+ 
    Muzzle .................................  119 / 831+ 
    Sawmill ................................  83 / 721 
        Set works end ......................  83 / 730 
    Sewing machine feeding .................  112 / 324 
    Turning lathe ..........................  82 / 166+ 
    Woodworking bench ......................  144 / 306+ 

Doily ......................................  428 / 81+ 
    Embroidery, design .....................  D06 / 613+ 
    Furniture protector ....................  D06 / 613+ 

Dollies   
    Article supporting .....................  280 / 47.34+ 
        Design .............................  D34 / 23 
    Hoisting trucks ........................  254 / 2 R+ 
    Rivet ..................................  227 
    Washing machine ........................  68 / 138 

Dolls ......................................  446 / 268+ 
    Aquatic ................................  446 / 156+ 
    Assembling and disassembling ...........  29 / 805 
    Design .................................  D21 / 621 
    Eating drinking nursing ................  446 / 304+ 
    Sleeping ...............................  446 / 345+ 
    Talking crying .........................  446 / 297+ 
        Wheeled ............................  446 / 270+ 
    Voices .................................  446 / 297+ 
        Pneumatic ..........................  446 / 188+ 
    Wheeled ................................  446 / 269+ 
        Inflatable .........................  446 / 226 

Dolomite Refractory Compositions ...........  501 / 113 

Dome .......................................  362 / 479 
    Arcuate design .........................  D25 / 19 
    Building structures ....................  52 / 80.1+ 
    Fire tube ..............................  122 / 116 
    Geodesic design ........................  D25 / 13 
    Lantern ................................  362 / 182 
        Tubular ............................  362 / 173 
    Lights vehicle .........................  362 / 470 
    Steam ..................................  122 / 508 
        Separator ..........................  122 / 492 
        Superheater ........................  122 / 486 
    Track sander hopper ....................  291 / 40 

Dominoes ...................................  273 / 292+ 

Donning   
    Empty spinning bobbins .................  57 / 266+ 
        Preparatory ........................  57 / 276+ 

Door (See  Closure)   
    Animal cage ............................  119 / 481 
    Animal stall ...........................  119 / 524 
    Bar for jamming closed .................  D08 / 331+ 
    Bells electric .........................  340 / 392.1+ 
    Braces .................................  52 / 291 
    Brakes, track or guideway ..............  16 / DIG 20 
    Cabinet   
        Sectional unit .....................  312 / 109+ 
        Showcase ...........................  312 / 138.1+ 
    Channel for sliding door ...............  D25 / 119+ 
    Checks .................................  16 / 82+ 
    Checks and closures ....................  16 / 49+ 
    Chimes .................................  D10 / 118 
    Coin controlled ........................  194 
    Curved cast archway ....................  52 / 85 
    Design .................................  D25 / 48.3+ 
    Electric   
        Contacts for burglar alarms ........  200 / 61.93 
    Elevator ...............................  187 / 313+ 
    Flexible roll ..........................  160 / 238+ 
    Folding ................................  160 / 229.1+ 
        Sliding together ...................  160 / 222+ 
    Frame ..................................  49 / 504 
        In situ structure ..................  52 / 204.1+ 
    Guards .................................  49 / 50+ 
    Handles (see --,knob) ..................  16 / 412+ 
        Latch ..............................  16 / DIG 32 
        Opening apparatus ..................  16 / DIG 7 
    Hanger or track ........................  16 / 87 R+ 
    Hinges .................................  16 / 221+ 
    Jail ...................................  49 / 15+ 
    Keyhole   
        Fluorescent ........................  250 / 466.1 
        Illuminator ........................  362 / 100+ 
    Knob ...................................  16 / 414+ 
        Design .............................  D08 
        With spindle attachment ............  292 / 347+ 
    Knockers ...............................  116 / 148 
        Design .............................  D08 / 401+ 
    Land vehicle ...........................  296 / 146.1+ 
    Latch (see  closure; fastener)   
    Latch bolts, biased ....................  70 / 144 
        Dog for bolt .......................  70 / 467+ 
    Lock ...................................  70 / 91+ 
        Keepers ............................  292 / 340+ 
        Railway ............................  105 / 395 
    Mat ....................................  15 / 215+ 
    Motor vehicle (see  closure)   
    Operators ..............................  49 / 324+ 
    Ornamental panel .......................  52 / 311.1+ 
    Overhead door ..........................  16 / DIG 1 
    Panel warp correction ..................  52 / 291 
    Plate or sign for ......................  D20 / 43+ 
    Plural panels ..........................  52 / 455+ 
    Pneumatic-type closer ..................  D08 / 330 
    Poultry enclosure ......................  119 / 494 
        Poultry self-operating .............  119 / 495 
    Railway   
        Dumping car ........................  105 / 280+ 
        Emergency ..........................  105 / 348+ 
        Platform trap ......................  105 / 426+ 
        Vehicle restrained .................  246 / 304+ 
    Releasers ..............................  292 / 341.16 
    Removers ...............................  414 / 684.3 
        Traversing hoist ...................  212 / 166 
    Sectional panel ........................  52 / 455+ 
    Ships ..................................  114 / 116+ 
    Silencer ...............................  D08 / 400 
    Sliding ................................  49 / 404+ 
    Stop ...................................  D08 / 402 
    Stove, furnace or oven   
        Casings furnace ....................  110 / 181 
        Cooling furnace ....................  110 / 180 
        Furnace ............................  110 / 173 R+ 
        Stove ..............................  126 / 190+ 
    Switches ...............................  200 / 61.62+ 
        Lamp or electronic tube system .....  315 / 84 
    Track ..................................  D08 / 377 
    Trim ...................................  52 / 211+ 
    Troughs ................................  49 / 408 
    Ventilating ............................  454 / 195 
        Stove ..............................  126 / 198 
    Work holder for door and frame .........  269 / 905* 

Dop Jewel Holder ...........................  451 / 389 

Doping   
    Diffusing in semiconductor .............  438 / 542+ 
    Fusing dopant with .....................  438 / 537+ 
    Semiconductor ..........................  438 / 537+ 
    Gas imersion laser doping ..............  438 / 535 
    While growing single crystal ...........  117 

Doping Agent Source Material ...............  252 / 950* 
    For vapor transport ....................  252 / 951* 

Doppler Compensation Systems ...............  367 / 904* 

Dorr Classifier ............................  209 / 462 

Dosage-Related Cabinet .....................  312 / 234+ 

Dosing Device   
    Dispensing .............................  222 
    Indicator for medicine .................  116 / 308 
    Medicators .............................  604 

Dot   
    Dot type mosaic screen cathode ray .....  313 / 472 
    Tube ...................................  313 / 472 
    Printer ................................  400 / 124.01 

Double Antibody Test .......................  436 / 540 

Double Bond Shift (See  Isomerization)   

Doubler ....................................  202 / 199 

Doublet Antenna ............................  343 / 793+ 

Doubling   
    Twisting strands   
        Covering or wrapping ...............  57 / 14 
        Delivery twist .....................  57 / 59+ 
        Ends or hanks ......................  57 / 26+ 
        Receiving twist ....................  57 / 66+ 
    Winding bobbins and cops ...............  242 / 472.8 
        Fault detecting ....................  242 / 472.9+ 

Douche .....................................  604 / 36+ 
    Hand held ..............................  604 / 212 
    Nozzle with separate ingress & .........  604 / 39 
    Egress .................................  604 / 39 
    Treating material introduced ...........  604 / 514 

Dough   
    Compositions ...........................  426 / 549+ 
    Crimping devices .......................  425 / 293 
    Cutting machines .......................  83 
    Dividing machines ......................  425 / 289+ 
    Forming, molding and working ...........  425 / 197+ 
    Forming, molding and working ...........  425 / 200+ 
    Kneading machines ......................  366 / 69+ 
    Kneading machines ......................  425 / 197+ 
    Kneading machines ......................  425 / 200+ 
    Mixing machines ........................  366 / 69+ 
    Packaging or wrapping ..................  426 / 392+ 
    Presses ................................  425 
    Raisers ................................  126 / 281+ 
    Rollers ................................  425 / 294 
    Rollers ................................  425 / 329 
    Testing ................................  73 / 169 

Doughnut ...................................  426 / 496 
    Cookers   
        Deep fat fryer type ................  99 / 403+ 
        Forming or shaping combined ........  99 / 354 
        Opposed heated surface type ........  99 / 382 
        Support combined ...................  99 / 442 
    Deep fry process .......................  426 / 439 
    Design .................................  D01 / 120 
    Dough fermentation .....................  426 / 18 

Doup Heddle ................................  139 / 51+ 

Dovetailing   
    Bedstead corner fastening ..............  5 / 300 
        Design .............................  D06 / 718.13 
    Calks ..................................  168 / 35 
    Woodworking ............................  144 / 85+ 

Dowel   
    Jigs ...................................  408 / 72 R+ 
    Pins ...................................  403 / 292+ 
        Making .............................  144 / 12 
        Module connector ...................  52 / 585.1 
    Road joint .............................  404 / 47+ 

Downdraft   
    Furnaces ...............................  110 / 315 
        Hot air furnace ....................  126 / 103 
    Liquid heaters and vaporizers   
        Fire tube ..........................  122 / 97 
        Water tube .........................  122 / 286 
    Stove ..................................  126 / 76 

Downspout ..................................  52 / 16 

Doxycycline ................................  552 / 203 

Draft   
    Air current   
        Back draft preventer ...............  454 / 359+ 
            For inlet airway ...............  454 / 259 
        Blast or shockwave preventer .......  454 / 194 
        Boiler .............................  122 
        Control to combustion chamber ......  431 / 20 
        Downdraft furnace ..................  110 / 315 
        Forced draft fumigant burner .......  43 / 125+ 
        Heating stove downdraft ............  126 / 76 
        Hot air furnace downdraft ..........  126 / 103 
        Intermediate in superimposed .......  110 / 267+ 
        Fire box with air or steam .........  110 / 267+ 
        Stove damper .......................  126 / 290 
        Superimposed fire box and ..........  110 / 317 
        Intermediate draft .................  110 / 317 
    Appliance   
        Animal .............................  278 
        Articulated vehicle train ..........  280 / 400 
        Cable hoist ........................  212 / 76+ 
        Cable railway ......................  104 / 193 
        Horse drawn sweep ..................  185 / 23 
        Monorail animal draft ..............  105 / 143 
        Railway ............................  213 
        Wheeled horse rake draft ...........  56 / 386 
        Dumping ............................  56 / 386+ 
    Equalizer   
        Animal draft appliance .............  278 / 3+ 
        Horse drawn sweep ..................  185 / 22 
    Gauges .................................  73 / 700+ 
    Regulator   
        Boiler .............................  122 / 38 
        Damper .............................  126 / 285 R+ 
        Damper automatic ...................  236 / 45 
        Furnace ............................  110 / 147+ 
        Spark arrester combined ............  110 / 123 

Drafting See Drawing   
    Board   
        Cabinet combined ...................  312 / 231 
    Implement ..............................  D19 / 101+ 
        Box for ............................  206 / 371 
        Curved ruler type ..................  33 / 561.2+ 
        Scriber type .......................  33 / 18.1+ 
        Straightedge type ..................  33 / 403+ 
    Table ..................................  D06 / 685+ 
    Textile fibers .........................  19 / 236+ 

Drag   
    Animal restraining .....................  119 / 758+ 
    Classifier .............................  209 / 462 
    Conveyer chains ........................  198 / 717+ 
    Conveyor chains for viscous fluids .....  198 / 643 
    Drilling planting machine ..............  111 / 84 
    Earth working ..........................  172 
    Fishing reel ...........................  242 / 283+ 
    Land vehicle type of ...................  280 / 19 
    Line scraper ...........................  172 / 26.5 
    Metal casting sand .....................  164 / 349+ 
    Oil distributor ........................  114 / 234 
    Reciprocating saw machine ..............  83 / 746+ 
    Saw guide ..............................  83 / 821 
    Sea anchor .............................  114 / 311 
        Design .............................  D12 / 215 
    Ships log ..............................  73 / 184+ 
    Spinning reel ..........................  242 / 243+ 
    Textile spinning and twisting ..........  57 / 113 
        Bobbin .............................  57 / 72 
        Flier type bobbin ..................  57 / 70 

Drain and Drainage   
    Building construction ..................  52 / 302.1+ 
    Cabinets with ..........................  312 / 229 
    Conduit electrical .....................  191 / 26 
    Dispenser ..............................  141 / 364 
    Footwear with ..........................  36 / 3 R 
    Fryer deep fat .........................  99 / 410+ 
    Machine fluid treating .................  68 / 208 
    Photographic wet plates ................  396 / 521 
    Pipe cleaner ...........................  15 / 104.31+ 
    Pump ...................................  417 / 437 
    Road or pavement .......................  404 / 2+ 
    Roll type clothes wringer ..............  68 / 271 
    Roofing interior .......................  52 / 553 
        Gutter .............................  52 / 11+ 
    Safes or banks .........................  109 / 28 
    Sand ...................................  405 / 50 
    Sewerage ...............................  210 / 163+ 
    Shield .................................  D23 / 261 
    Sink ...................................  4 / 650+ 
    Soil ...................................  405 / 36+ 
    Static mold having fluid ...............  249 / 141 
    Sugar centrifugals .....................  127 / 19 
    Surgical ...............................  604 / 264+ 
    Table surgical .........................  108 / 24 
    Washing machines .......................  68 / 208 
    Wringer roll ...........................  68 / 271 

Drain Board (See  Dish, Drainer)   
    Sink accessory .........................  D32 / 56 
    Tub with ...............................  4 / 637 
        Attachment .........................  4 / 656 
        Design .............................  D23 / 277+ 

Draperies ..................................  160 / 330+ 
    Hook ...................................  16 / 93 D 
    Surgical ...............................  128 / 849 
    Tie back, fabric .......................  D06 / 578 
    Tie back, rigid ........................  D08 / 368 

Draw   
    Press ..................................  72 / 343+ 

Drawbar   
    Articulated vehicles combined ..........  280 / 400+ 
    Bedstead corner fastening ..............  5 / 298 
    Elastic extension device ...............  267 / 72 
    Inclosing ..............................  267 / 72 
    Railway ................................  213 / 62 R+ 
        Car forging dies ...................  72 / 343+ 
        Car making .........................  72 

Drawbridge .................................  14 / 31+ 
    Electrical transmission to .............  191 / 9 
    Floating ...............................  14 / 29+ 
    Protection switch or signal ............  246 / 118+ 

Drawer   
    Bed combined ...........................  5 / 308 
    Cabinet ................................  312 
        Horizontal sliding .................  312 / 330.1+ 
    Cash register operation ................  235 / 22 
    Element of sofa bed ....................  5 / 58 
    Key set cash register operated by ......  235 / 10 
    Knob labels and tags ...................  40 / 331+ 
    Locks ..................................  70 / 85+ 
    Plate or sign for ......................  D20 / 43+ 
    Pull labels and tags ...................  40 / 325 
    Refrigerated ...........................  62 / 382 
        Air blocking when open .............  62 / 266 

Drawing (See  Drafting)   
    Abrading reel ..........................  451 / 183 
    Board   
        Cabinet combined ...................  312 / 231 
        Design .............................  D19 / 113 
        Straight edge mounting .............  33 / 430+ 
    Die ....................................  72 / 467 
    Easels .................................  248 / 441.1+ 
    Glass ..................................  65 / 193+ 
        Process ............................  65 / 66+ 
    Implement ..............................  D19 / 101+ 
    Manufacturing glass   
        Fibers .............................  65 / 475+ 
        Fiber apparatus ....................  65 / 483+ 
        Product by .........................  65 
    Material, design of ....................  D19 / 101+ 
    Mechanical instruments .................  33 
    Mercury vapor lamp starting by .........  313 / 170+ 
    Metal ..................................  72 
        Cup or shell .......................  72 / 347+ 
        Method & apparatus .................  29 / DIG 11 
        Push drawing .......................  72 / 343 
        Rolling combined ...................  72 / 206 
        Sheet die shaping ..................  72 / 380+ 
        Spinning ...........................  72 / 82+ 
        Wire or tube .......................  72 / 274+ 
    Pen ....................................  401 / 267 
        Design .............................  D19 / 114+ 
    Perspective instruments ................  33 / 1 K 
    Reverse drawing on metal ...............  72 / 708* 
    Textile fiber ..........................  19 / 236 
    Textile spinning,twisting,twining   
        Combined ...........................  57 / 315+ 
        Rollers ............................  57 / 97 
    Toy (design) ...........................  D21 / 469 
    Triangles ..............................  33 / 474 
    Visual arts ............................  434 / 85+ 

Drawknives .................................  30 / 313 

Drawplate   
    Diamond setting ........................  76 / 107.1+ 

Drawstring .................................  24 / 712 

Dredge   
    Excavating .............................  37 / 307+ 
    Submerged vessel raising ...............  114 / 55 

Dredge Top Dispenser .......................  222 / 480 

Dress ......................................  D02 / 756+ 
    Garment ................................  2 / 71+ 
        Forms ..............................  223 / 68+ 
        Hangers ............................  223 / 92+ 
        Protector ..........................  2 / 46+ 
        Shield pressing ....................  223 / 54 
        Weights ............................  2 / 273 
    Maternity ..............................  2 / 76 
    Sifting screen .........................  209 / 392+ 
    Wheel guards ...........................  280 / 160.1 

Dresser, Fish Preparation Tool .............  D07 / 693+ 

Dresser, Furniture .........................  D06 / 663+ 

Dressing   
    Brushes and brooms .....................  300 / 18 
    Meat and fowl and fish .................  452 
    Saw making   
        Jointing and gaging combined .......  76 / 46 
        Jointing combined ..................  76 / 50.4+ 
    Separating screen ......................  209 / 392+ 
    Separating solids ......................  209 
    Stone working ..........................  125 / 2+ 
        Diamond tool for ...................  125 / 39 
        Grindstones ........................  125 / 11.11 
        Millstone ..........................  125 / 27+ 
    Surgical see bandaging   
    Tobacco   
        Fluid or fluent material ...........  131 / 300+ 
        Smoothing brushing rolling .........  131 / 324+ 
        Stemming combined ..................  131 / 315+ 
    Warps ..................................  28 / 178+ 

Dried Fruits and Vegetables ................  426 / 640+ 

Drier and Drying See Dehydration ...........  34 
    Blotter or towel type ..................  34 / 95+ 
        Non-drying device combined .........  34 / 89.1+ 
    Cigar and cigarette making   
        Tip or mouthpiece applying .........  131 / 92 
        Wrapper sealing ....................  131 / 68 
    Clothes ................................  34 
        Automatic ..........................  34 / 524+ 
        Clothes drying rack ................  D32 / 58 
        Machine design .....................  D32 / 8 
    Coating combined with drying ...........  427 / 372.2+ 
    Collar cuff and bosom making ...........  223 / 3 
    Composition ............................  106 / 310 
        Drying oils combined ...............  106 / 264 
        For coating ........................  106 / 310 
    Dress coat or skirt forming and ........  223 / 69 
    Stretching .............................  223 / 69 
    Dry closet .............................  4 / 111.1+ 
    Fruits and vegetables dehydrating ......  426 / 471+ 
    Garbage and sewerage furnace ...........  110 / 224+ 
    Gas and vapor contact with solids ......  34 
    Hair dryer .............................  D28 / 12+ 
    Hand dryer .............................  D28 / 54.1 
    Methods ................................  34 / 282+ 
    Milk dehydrating .......................  426 / 471+ 
    Mortar mixer combined ..................  366 / 22+ 
    Paper article making   
        Box making .........................  493 / 141+ 
        Envelope making ....................  493 / 265 
    Rack ...................................  211 
    Refuse treatment means .................  110 / 224+ 
    Shoe and boot ..........................  34 / 104 
    Solids apparatus .......................  34 / 524+ 
    Spooled material .......................  242 / 602+ 
    Textiles   
        Thread finishing, heating ..........  28 / 219 
        Or drying ..........................  28 / 219 
        Washing machine combined ...........  68 / 20 
        Web spreader combined ..............  26 / 92 
        Web stretching combined ............  26 / 106 
    Tobacco ................................  131 / 300+ 
    Wood bending ...........................  144 / 254 

Drift   
    Indicator (see  direction indicator)   
    Pin ....................................  29 / 275 

Drill (See  Bit)   
    Bit ....................................  D15 / 138+ 
        Dental .............................  433 / 165+ 
    Chucks .................................  279 
    Cigar tip perforators ..................  131 / 254 
    Dentists ...............................  433 / 165 
        Design .............................  D24 / 146+ 
    Drilling machines ......................  408 
    Drills .................................  408 / 199+ 
        Design .............................  D15 / 139 
        Design hand tool ...................  D08 / 59 
    Earth boring ...........................  175 / 327+ 
        Expansible .........................  175 / 263+ 
    Grain planting .........................  111 / 14+ 
    Grinding processes .....................  451 / 48 
    Making and sharpening machines .........  76 / 5.1+ 
    Making blanks and processes ............  76 / 108.1+ 
    Press ..................................  408 / 72 R+ 
    Press type combined metal working ......  29 / 26 R+ 
    Machine ................................  29 / 26 R+ 
    Pyramidal end ..........................  125 / 1 
    Rack for ...............................  211 / 69 
    Rail portable ..........................  408 / 77 
    Receptacles special for ................  206 / 379 
    Rock ...................................  175 / 327+ 
    Trepan .................................  606 / 176+ 
    Twist for metalworking .................  408 / 230 
    Twisting stock to make .................  72 / 299 
    Vise attached ..........................  29 / 560.1 
    Well ...................................  175 
    Woodworking ............................  408 / 199+ 

Drilling (See  Boring)   
    Borehole and drilling study ............  73 / 152.43+ 
    Brush making tuft setting and ..........  300 / 3 
    Button making ..........................  79 / 11+ 
        Pearl button surfacing and .........  79 / 6 
    Earth ..................................  175 
    Grain drill chute ......................  193 / 9 
    Machines   
        Dental .............................  433 / 103+ 
        Driving or impacting ...............  173 
        Radial .............................  408 / 236+ 
        Rock ...............................  175 
    Mining implement .......................  299 / 69+ 
    Muds   
        Analysis ...........................  73 / 152.04 
        Compositions .......................  507 / 100+ 
        Earth boring with ..................  175 / 65+ 
    Planting ...............................  111 / 14+ 
        Broadcasting and ...................  111 / 8+ 
        Liquid or gas ......................  111 / 118+ 
        Plant setting ......................  111 / 109+ 
    Solid material .........................  408 
        Electric ...........................  310 
    Well ...................................  175 
        Marine platform ....................  405 / 195.1+ 

Drink   
    Preparation or dispensing machines .....  D07 / 300+ 
    Registers ..............................  235 / 94 R 

Drinking Fountain ..........................  239 / 24+ 
    Animal watering devices ................  119 / 72+ 
        Design .............................  D30 / 121+ 
    Design .................................  D07 / 304 
    Tube ...................................  239 / 33 
        Filter combined ....................  210 / 251 

Drinking Straw .............................  239 / 33 

Drinking Vessel   
    Container for collapsible type .........  206 / 218+ 

Drinking Water   
    Chemical purification ..................  210 / 198.1+ 
        Process ............................  210 / 601+ 
    Filtering ..............................  210 / 348+ 
        Decanting combined .................  210 / 294+ 

Drip   
    Building attached deflector ............  52 / 97 
    Catcher see drip pan   
        Closet bowl ........................  4 / 251.1+ 
        Coating implement adjunct ..........  401 / 15 
        Cooking apparatus ..................  99 / 444+ 
        Dispenser ..........................  222 / 108+ 
        Fluid sprayer or sprinkler .........  239 / 120+ 
        Gas separation apparatus ...........  96 / 396 
        Griddle ............................  99 / 425 
        Inverted container support with ....  141 / 364 
        Open top liquid heating vessel .....  126 / 383.1+ 
        Refrigerator defrost water .........  62 / 285+ 
        Refrigerator ice melt ..............  62 / 459+ 
        Refrigerator ice melt filter .......  62 / 318 
        Toaster ............................  99 / 400 
        Waffle type cooker .................  99 / 375 
    Coffee maker ...........................  99 / 306 
    Collector ..............................  431 / 119 
    Cooled   
        Ice melt gas contactor .............  62 / 312+ 
        Ice melt heat exchanger ............  62 / 460+ 
        Wet wall type refrigerator .........  62 / 278 
    Cup   
        Cleaning attachment ................  15 / 248.1+ 
        Umbrella ...........................  135 / 48 
    Liquid diffusers .......................  239 / 38 
    Meters .................................  604 / 251 
        Drip sensor ........................  604 / 253 
        Filter .............................  604 / 252 
        Flow control .......................  604 / 246 
    Pan see drip catcher   
        Liquid fuel cooking stove ..........  126 / 51 
        Lubricators ........................  184 / 106 
        Vehicle body .......................  296 / 38 
    Plate   
        Boiler feed heater .................  122 / 417 
        Fluid fuel burning liquid heater ...  126 / 355.1 
        In liquid heating vessel ...........  126 / 355.1 

Drive in Theatres ..........................  52 / 6+ 
    Anchor .................................  52 / 155 
    Supported building component ...........  52 / 292+ 
        Earth piercer ......................  52 / 155+ 
        Terranean relationship .............  52 / 169.1+ 

Drive or Driver   
    Barrel hoop ............................  147 / 7+ 
    Barrel tap .............................  81 / 27 
        With dispensing ....................  222 / 81+ 
    Bolt or nut ............................  81 / 52+ 
    Centrifugal separators .................  210 / 360.1+ 
    Conveyor endless .......................  198 / 832+ 
    Earth boring tool combined .............  175 / 170+ 
        Impact .............................  175 / 135 
    Elongated-member driving apparatus .....  227 
    Golf club ..............................  473 / 282+ 
        Design .............................  D21 / 733+ 
    Hammer .................................  173 / 90+ 
        Design .............................  D08 / 75+ 
    Hill planting machine belt feed ........  111 / 19 
    Locomotive .............................  105 / 26.05+ 
    Mallets ................................  81 / 19 
    Nail   
        Implements .........................  227 / 140+ 
        Machine ............................  227 
    Pile ...................................  173 / 90+ 
    Railway car wheel or axle ..............  105 / 96+ 
    Railway turntable actuator .............  104 / 41 
    Screw driver implement .................  81 / 436+ 
    Screw driving machine ..................  81 / 54 
    Sewing machine .........................  112 / 220+ 
    Shoe lasting and nailing ...............  12 / 13.1 
    Tap driving ratchet ....................  408 / 120+ 
    Tool ...................................  173 
    Track spike ............................  104 / 17.1 
    Trackmans car ..........................  105 / 86+ 
    Turning work ...........................  82 / 166+ 
    Well point .............................  175 
        Control by electrical ..............  340 / 853.3+ 
        Communications system ..............  340 / 853.3+ 

Driven Headed and Screw Threaded ...........  411 
    Devices ................................  411 
    Railway spikes .........................  238 / 366+ 

Drop   
    Annunciator systems ....................  340 / 286.11+ 
    Annunciators ...........................  340 / 815.79+ 
    Bomb ...................................  102 / 382+ 
    Forging ................................  72 / 435+ 
        Fluid operated .....................  72 / 453.01+ 
    Hammer .................................  72 / 435+ 
    Pick up for overhead railway car .......  104 / 122 
    Store service ..........................  186 / 22+ 
    Telephone switchboard restorers ........  379 / 315+ 

Drop Devices ...............................  472 / 131 
    Parachute simulating ...................  472 / 49 
    Roundabout .............................  472 / 2 
    With trip release ......................  472 / 50 

Dropper   
    Animal waterer .........................  119 / 72.5 
    Cash register indicator tablet .........  235 / 25 
    Dispenser ..............................  222 / 420+ 
        Medicine dropper type ..............  141 / 24 
    Medicine ...............................  604 / 295+ 
        Combined with bottle, design .......  D09 / 723+ 
        Combined with closure, design ......  D09 / 447 

Droppings Catcher   
    Dispenser ..............................  222 / 108+ 
    Railway ................................  104 / 133 

Drugs ......................................  424 
    Bio-affecting & body treating ..........  514 
    Compositions ...........................  514 
        Acronycines ........................  514 / 285 
        Adenine ............................  514 / 263.4 
        Allantoin ..........................  514 / 390 
        Amantadine .........................  514 / 656 
        Amphetamine ........................  514 / 654 
        Ampicillin .........................  514 / 198 
        Amprotropine .......................  514 / 534 
        Aspirin ............................  514 / 165 
        Atropine ...........................  514 / 304 
        Barbituric acid ....................  514 / 270 
        Benzocaine .........................  514 / 535 
        Benzomorphans ......................  514 / 295 
        Biotin .............................  514 / 387 
        Capsaicin ..........................  514 / 627 
        Cephalosporins .....................  514 / 200+ 
        Chlorpheniramine ...................  514 / 357 
        Cholecalciferol ....................  514 / 167 
        Chrysanthemic acid .................  514 / 572 
        Cobalamin ..........................  514 / 52 
        Codeine ............................  514 / 282 
        Colchicine .........................  514 / 629 
        Cortisone ..........................  514 / 179 
        Cupreine ...........................  514 / 305 
        Cycloheximide ......................  514 / 328 
        Cyproheptadine .....................  514 / 325 
        Cysteine ester .....................  514 / 550 
        D d t ..............................  514 / 748 
        D d v p ............................  514 / 136 
        Dextromethorphan ...................  514 / 289 
        Dyphylline .........................  514 / 263.36 
        Ephedrine ..........................  514 / 653 
        Estradiol ..........................  514 / 182 
        Fluspirilene .......................  514 / 278 
        Glaucine ...........................  514 / 284 
        Glaumine ...........................  514 / 669 
        Griseofulvin .......................  514 / 462 
        Guanine ............................  514 / 263.37 
        Hexachlorophene ....................  514 / 735 
        Hydrocortisone .....................  514 / 179 
        Isoniazid ..........................  514 / 354 
        Malathion ..........................  514 / 122 
        Melatonin ..........................  514 / 415 
        Meperidine .........................  514 / 330 
        Methadone ..........................  514 / 648 
        Methapyrilene ......................  514 / 336 
        Methomyl ...........................  514 / 477 
        Morphinans .........................  514 / 289 
        Morphine ...........................  514 / 282 
        Nandrolone .........................  514 / 178+ 
        Niacinamide ........................  514 / 355 
        Nicotinamide .......................  514 / 355 
        Nicotine acid ......................  514 / 356 
        Nortestosterone ....................  514 / 178 
        Novocaine ..........................  514 / 535 
        Oxolinic acid ......................  514 / 291 
        Parathion ..........................  514 / 132 
        Penicillin g .......................  514 / 199 
        Perdnisolone .......................  514 / 179 
        Perimidines ........................  514 / 269 
        Phenylephrine ......................  514 / 653 
        Phenyltoloxamine ...................  514 / 651 
        Pilocarpine ........................  514 / 397 
        Pimozide ...........................  514 / 323 
        Piromidic acid .....................  514 / 303 
        Procaine ...........................  514 / 535 
        Progesterone .......................  514 / 177 
        Psoralen ...........................  514 / 455 
        Pteridine ..........................  514 / 249 
        Purines ............................  514 / 263.1 
        Purines ............................  514 / 263.4 
        Quinazoline ........................  514 / 266.1 
        Quinazoline ........................  514 / 266.4 
        Quinicine ..........................  514 / 314 
        Quinidine ..........................  514 / 305 
        Quinine ............................  514 / 305 
        Quinoxaline ........................  514 / 249 
        Riboflavines .......................  514 / 251 
        Salinomycin ........................  514 / 460 
        Scopolamine ........................  514 / 291 
        Tartaric acid ......................  514 / 574 
        Tetracycline .......................  514 / 152 
        Tetramisole ........................  514 / 368 
        Theophiylline ......................  514 / 263.34 
        Thiamines ..........................  514 / 276 
        Tocopherols ........................  514 / 458 
        Tripelennamine .....................  514 / 352 
        Tryptophan .........................  514 / 419 
        Tyrosine ...........................  514 / 567 
        Uracil .............................  514 / 274 
        Vinblastine ........................  514 / 283 
        Vincamine ..........................  514 / 283 
        Viquidil ...........................  514 / 314 
    Childproof bottle closures .............  215 / 201+ 
    Drugs of abuse .........................  436 / 901* 
    Radioactive containing composition .....  424 / 1.11+ 

Drums (See Cylinders; Rollers)   
    Armature (see  armature) ...............  310 / 265 
    Brake ..................................  188 / 218 R 
    Cask or ................................  D34 / 39 
    Centrifugal (see centrifugal force,   
    Separators)   
    Container type .........................  220 
    Earthworking or smoothing see   
    Rolls & rollers, land   
    Evaporator moving film support .........  159 / 9.1 
        Treated material inside drum .......  159 / 9.2 
    Material separating (see  separator)   
    Musical ................................  84 / 411 R+ 
        Automatic ..........................  84 / 104 
    Rotary furnace .........................  432 / 103+ 
        Metallurgical ......................  266 / 173 
    Rotary heat exchange ...................  165 / 89+ 
    Rotary or tilting support ..............  384 / 549 
        Stand ..............................  248 / 128+ 
    Tumbling device for abrading ...........  451 / 328 
    Winding (see  coiling winding)   

Drumstick ..................................  84 / 422.4 

Dry Cell Battery ...........................  429 / 156 
    Recharging system ......................  320 / 100+ 
    Thermoelectric & photoelectric .........  136 

Dry Cleaning ...............................  8 / 142 
    Cleaner compositions ...................  510 / 285+ 
    Machinery design .......................  D32 / 10 

Dry Closet .................................  4 / 449+ 
    Furnace combined .......................  4 / 111.1+ 

Dry Dock ...................................  405 / 4+ 
    Floating ...............................  114 / 45+ 

DRY ICE™    Solid Carbon Dioxide   
    Making .................................  62 / 602+ 
        Process ............................  62 / 602+ 
        Shaping combined ...................  62 / 604 
    Refrigeration by .......................  62 / 384+ 
        Automatic ..........................  62 / 165+ 

Dryers (See  Drier & Drying)   

Drying Japans ..............................  106 / 310 

Drying Oil .................................  554 / 24+ 
    Composition containing .................  106 / 252+ 
        Natural resin containing ...........  106 / 222+ 
    Fatty oil with preservative ............  106 / 263 
    Hydrocarbon ............................  585 / 945* 
    Mineral oil ............................  208 / 1 
    Polymers ctg (see synthetic resin   
    Or natural rubber)   

Drywall Construction .......................  52 / 344+ 
    Strip ..................................  52 / 459+ 

Dual-in-Line Electronic Package ............  174 / 524 

Duck   
    Calls ..................................  446 / 207+ 
        Design .............................  D10 / 119.1 
    Decoys .................................  43 / 3 

Duct (See  Conduit)   
    Humidifier .............................  261 / DIG 15 

Ductility Testing ..........................  73 / 87 

Dulcimer ...................................  84 / 284 

Dumb Waiter ................................  187 

Dumbbell ...................................  482 / 108 

Dumdum Bullet ..............................  102 / 507+ 

Dummy   
    Ammunition .............................  102 / 444+ 
        Bomb ...............................  102 / 395 
        Shell ..............................  102 / 498 
    Clothes and other display ..............  40 / 538 
    Figure dispenser .......................  222 / 78 
    Figure toys ............................  446 / 268+ 
        Aquatic ............................  446 / 156+ 
        Inflatable .........................  446 / 226 
        Wheeled ............................  446 / 269+ 
    Pyrotechnics ...........................  102 / 355 
    Tackling ...............................  473 / 441+ 

Dumping Mechanism   
    Cable hoist ............................  212 / 79+ 
    Clothes washing machines ...............  68 / 210 
    Egg candling trays .....................  356 / 65 
    Furnace ash pan ........................  110 / 167+ 
    Hand shovel ............................  414 / 722+ 
    Mortar mixer ...........................  366 / 45+ 
    Nuclear reactor ........................  376 / 261 
    Portable receptacle ....................  414 / 403+ 
    Safes ..................................  109 / 46 
    Shelf to shelf flow drying .............  34 / 172 
    Apparatus ..............................  34 / 172 
    Stove grates ...........................  126 / 162 
        Rocking bar ........................  126 / 177 
        Shaking combined ...................  126 / 158 
        Vertical axis oscillatory ..........  126 / 171 
    Vehicle ................................  298 
        Horse rake .........................  56 / 386+ 
        Railway ............................  105 / 239+ 
            Moving car .....................  105 / 241.1 
        Rake and tedder ....................  56 / 368 
        Roadway with external ..............  414 / 354+ 
        Scoop ..............................  37 / 441 
        Scow ...............................  114 / 27+ 
        Wheeled toy ........................  446 / 428 
    Water closet ...........................  4 / 365+ 

Dune Buggy Design ..........................  D12 / 87 

Dunnage   
    Element ................................  267 / 136+ 
    For container ..........................  220 / 62.11+ 
    For freight ............................  410 / 121 
        Edge-around ........................  410 / 155 
        Honeycomb ..........................  410 / 154 

Duplex Copy   
    Electrophotographic copier .............  399 / 364 

Duplex Diplex System .......................  370 / 275 

Duplex Telegraph System ....................  370 / 276+ 

Duplicate Whist and Other Card Hand ........  273 / 151 
    Holding apparatus ......................  273 / 151 

Duplicating (See  Manifolding)   
    Cutting machine ........................  409 / 93 
    Keys ...................................  409 / 81+ 
        Machines ...........................  D15 / 127 
    Pattern controlled   
        Milling machine ....................  409 / 79+ 
        Sheet or card punching .............  234 / 59+ 
    Plural ribbon typewriter ...............  400 / 204+ 
    Printing machine .......................  101 / 113 
        Selecting or progressive ...........  101 / 90 
    Ticket printing machine ................  101 / 67+ 

DUREZ™    (Phenoplast) .....................  528 / 129 

Duroquinone ................................  552 / 310 

Dust   
    Carburetor .............................  406 
    Collectors   
        Abrading machines ..................  451 / 456 
        Cabinet with .......................  312 / 229 
        Coating compositions for ...........  252 / 88.2 
        Dental engine ......................  433 / 116 
        Design .............................  D32 / 15+ 
        Earth boring cuttings ..............  175 / 207+ 
        Gas separator with .................  55 / 429 
        Textile spinning apparatus .........  57 / 300+ 
        With air blast or ..................  15 / 347 
        Suction cleaner ....................  15 / 347+ 
        Woodworking machines ...............  144 / 252.1+ 
    Conveyor   
        Threshing machine ..................  460 / 117 
        Woodworking ........................  144 / 252.1+ 
    Cover   
        Billiard and pool table ............  473 / 34 
        Inflation stem type ................  138 / 89.4 
        Inflation stem type air and ........  138 / 89.1+ 
        Vehicle top ........................  296 / 136.09 
        Wheel and valve stem with ..........  152 / 428 
    Fixation ...............................  404 / 76 
    Guard   
        Car ventilation ....................  454 / 96+ 
        Locomotive cab .....................  454 / 86 
        Motor vehicle ......................  180 / 84 
        Passenger railway car body .........  105 / 350+ 
        Typewriter bar .....................  400 / 467+ 
        Vehicle ............................  280 / 159 
        Vehicle mud and ....................  280 / 847+ 
        Watch and clock keys with ..........  81 / 123 
    Laying compositions ....................  252 / 88.1 
    Pan ....................................  15 / 257.1+ 
        Design .............................  D32 / 74 
    Separators   
        Cleaning ...........................  15 
        Gas and ............................  96 
        With air blast or ..................  15 / 347 
        Suction cleaner ....................  15 / 347+ 

Dust Core ..................................  148 / 300+ 
    Making .................................  148 / 104 
    Structure ..............................  336 / 233+ 

Dust Pan ...................................  D32 / 74 

Duster (See Dispensing; Distributing;   
    Sprayer; spreader)   
    Animal antivermin treatment ............  119 / 665+ 
    Coating apparatus ......................  118 / 308+ 
    Feather ................................  15 / 234 
        Design .............................  D32 / 40+ 
    Insect powder ..........................  239 
        Design .............................  D08 / 2 
    Mobile orchard type ....................  239 / 77+ 

Dwarfing Agents ............................  504 / 174+ 

Dwelling   
    Cleaning   
        Installed air blast or suction .....  15 / 301 
        Systems ............................  15 / 301+ 

Dye   
    Coating or plastic compositions ........  106 
    Containing .............................  106 
    Compositions & processes ...............  8 
        Cake, tablet or powder form ........  8 / 524+ 
    Compounds anthraquinone ................  552 / 208+ 
        Anthrone ...........................  552 / 271+ 
        Azo ................................  534 / 653 
        Triphenylmethane ...................  552 / 101+ 
    Envelope sealing flap combined .........  229 / 83 
    Food ...................................  426 / 540+ 
    Hair ...................................  8 
    Mordant ................................  430 / 941* 
    Oxidizable dyes ........................  436 / 904* 
    Sensitizer in photoconductive ..........  430 / 60+ 
    Composition ............................  430 / 60+ 
    Synthetic resin or natural rubber   
    (See  class 523, 524))   

Dyeing .....................................  8 
    Electrolytic dyeing of organic .........  205 / 691 
    Fiberous material ......................  205 / 691 
    Fluid treating apparatus ...............  68 
    Hair ...................................  8 
    Mordanting .............................  8 
    Sewing combined ........................  112 / 17 
    Textile operation combined .............  28 / 169 
        Warp preparation ...................  28 / 178 

Dynamics, Teaching .........................  434 / 302 

Dynamite ...................................  149 
    Making .................................  149 

Dynamo .....................................  310 
    Brush holders ..........................  310 / 239+ 
    Brushes ................................  310 / 248+ 
    Commutators ............................  310 / 233+ 
    Connecting in parallel .................  307 / 43+ 
    Electric machines ......................  310 / 10+ 
    Electric prime mover plant .............  290 
    Internal combustion engine .............  123 / 149 R 
    Igniters ...............................  123 / 149 R 
    Nonelectric prime mover plant ..........  290 
    Railway locomotive .....................  105 / 35+ 
    Telegraph systems ......................  178 / 65 

Dynamoelectric   
    Educational demonstration ..............  434 / 380 
    Electromagnet like linear ..............  335 / 209+ 
    Motor or generator .....................  335 / 209+ 
    Geophysical transducer .................  367 / 140+ 
    Linear .................................  310 / 12.01+ 
    Linear .................................  310 / 12.33 
    Linear .................................  310 / 15+ 
    Oscillating ............................  310 / 36+ 
        Mechanical motion converter ........  310 / 37 
        Reciprocating ......................  310 / 15+ 
    Rotary .................................  310 / 40 R 
    Rotary .................................  310 / 49.55 
        Amplifier system linear ...........  330 / 58 
        Bearing adjustable .................  310 / 90 
        Coated .............................  310 / 45 
        Combined with other device .........  310 / 66+ 
        Connector on .......................  310 / 71+ 
        Cooling ............................  310 / 52 
        Cooling circulating type ...........  310 / 58 
        Cooling filtered coolant ...........  310 / 56 
        Cooling liquid .....................  310 / 54 
        Cooling nonatmospheric gas .........  310 / 55 
        Cooling sealed type ................  310 / 57 
        Cooling self forced ................  310 / 60 R+ 
        Cooling treated coolant ............  310 / 56 
        Cooling with control ...............  310 / 53 
        Cooling with purifying means .......  310 / 56 
        Cover combined .....................  310 / 89 
        Dirt proofed .......................  310 / 88 
        Explosion proofed ..................  310 / 88 
        Flywheel combined ..................  310 / 74 
        Housing combined ...................  310 / 89 
        Housing for ........................  310 / 85 
            Electrical apparatus ...........  361 / 600 
        Illumination .......................  310 / 73 
        Impregnated ........................  310 / 45 
        Inbuilt or incorporated unit .......  310 / 67 R 
        Inertia device for .................  310 / 74 
        Lamp as part .......................  310 / 73 
        Lead in for ........................  310 / 71 
        Lubrication ........................  310 / 90 
        Manufacture ........................  29 / 596+ 
        Mechanical shield with .............  310 / 85 
        Moisture proofed ...................  310 / 88 
        Molded plastic part ................  310 / 43 
        Powdered metal part ................  310 / 44 
        Shaft and armature timing ..........  310 / 79 
        Shaft driven switch ................  310 / 69+ 
        Shield between armature and ........  310 / 86 
        Field ..............................  310 / 86 
        Sound proofed ......................  310 / 51 
        Submerged ..........................  310 / 87 
        Support combined ...................  310 / 91 
        Terminal on ........................  310 / 71 
        Underwater type ....................  310 / 87 
        Vibration damped ...................  310 / 51 
        With impedance , capacitor .........  310 / 72 
        Or resistor ........................  310 / 72 
        With plastic part ..................  310 / 43 
        With sintered part .................  310 / 44 

Dynamometer ................................  73 / 862 
    Dynamotor, electric brake ..............  310 / 93 
    Electric meter .........................  324 / 144+ 
    Strength of material test ..............  73 / 836 

Dynatron, Oscillator .......................  331 / 133 
    Demodulator ............................  329 

DYNEL™    (Polyacrylonitrile Vinyl .........  526 / 342 
    Chloride) ..............................  526 / 342 

Dyphylline, in Drug ........................  514 / 263.34