| Class 84 | MUSIC |
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![[List of Pre Grant Publications for class 84 subclass 1]](../as.gif) | ![[List of Patents for class 84 subclass 1]](../ps.gif) | 1 | INSTRUMENTS |
| | 600 |  Electrical musical tone generation |
| | 601 |  Data storage |
| | 602 |  Digital memory circuit (e.g., RAM, ROM, etc.) |
| | 603 |  Sampling (e.g., with A/D conversion) |
| | 604 | Waveform memory |
| | 608 | Fourier coefficient memory |
| | 609 | Note sequence |
| | 615 | Selecting circuits |
| | 616 |  Fundamental tone detection or extraction |
| | 617 | Multiplexing or scanning |
| | 618 | Priority or preference circuits |
| | 619 | Transposition |
| | 620 | Stops |
| | 621 | Noise reduction (e.g., error prevention, etc.) |
| | 622 | Tone synthesis or timbre control |
| | 626 | Expression or special effects (e.g., force or velocity responsive, etc.) |
| | 627 | Envelope shaping (i.e., attack, decay, sustain, or release) |
| | 628 | Portamento or glissando |
| | 629 | Vibrato or tremolo |
| | 630 | Reverberation |
| | 631 | Chorus, ensemble, or celeste |
| | 632 | Chiff or percussive transients |
| | 633 | Loudness control |
| | 634 | Accompaniment |
| | 639 | Photoelectric |
| | 641 | Magnetic |
| | 643 | Capacitive |
| | 644 | Constructional details |
| | 645 | MIDI (musical instrument digital interface) |
| | 646 | Fret control |
| | 647 | Digital combinational circuit |
| | 648 | With frequency multiplication or division |
| | 649 | Note sequence |
| | 653 | Selecting circuits |
| | 654 | Fundamental tone detection or extraction |
| | 655 | Multiplexing or scanning |
| | 656 | Priority or preference circuits |
| | 657 | Transposition |
| | 658 | Force or velocity responsive |
| | 659 | Tone synthesis or timbre control |
| | 662 | Expression or special effects |
| | 663 | Envelope shaping (i.e., attack, decay, sustain, or release) |
| | 664 | Chorus, ensemble, or celeste |
| | 665 | Loudness control |
| | 666 | Accompaniment |
| | 670 | Constructional details |
| | 671 | Electric analog oscillators |
| | 672 | Variable frequency |
| | 675 | With frequency multiplication or division |
| | 678 | Selecting circuits |
| | 679 | With transistor |
| | 680 | With space discharging means |
| | 681 | Fundamental tone detection or extraction |
| | 682 | Multiplexing or scanning |
| | 683 | Noise reduction (e.g., error prevention, etc.) |
| | 684 | Priority or preference circuits |
| | 685 | Transposition |
| | 686 | Stops |
| | 687 | Force or velocity responsive |
| | 691 | Noise reduction (e.g., error prevention, etc.) |
| | 692 | Tone synthesis or timbre control |
| | 701 | Expression or special effects |
| | 702 | Envelope shaping (e.g., attack, decay, sustain, or release, etc.) |
| | 704 | Portamento or glissando |
| | 705 | Tremolo |
| | 706 | Vibrato |
| | 707 | Reverberation |
| | 708 | Chorus, ensemble, or celeste |
| | 709 | Trill |
| | 710 | Chiff or percussive transients |
| | 711 | Loudness control |
| | 712 | Accompaniment |
| | 718 | Constructional details |
| | 722 | Fret control |
| | 723 | Transducers |
| | 724 | Photoelectric |
| | 725 | Electromagnetic |
| | 730 | Piezoelectric |
| | 733 | Capacitive |
| | 734 | Strain gauge |
| | 735 | Tone synthesis or timbre control |
| | 737 | Expression or special effects |
| | 738 | Envelope shaping (e.g., attack, decay, sustain, or release, etc.) |
| | 739 | Tremolo |
| | 740 | Vibrato |
| | 741 | Loudness control |
| | 742 | Selecting circuits |
| | 743 | Constructional details |
| Automatic |
| | 2 | Combined |
| | 3 | Electric |
| | 7 | Stringed |
| | 8 | With picking devices |
| | 10 | With bowing devices |
| | 12 | With striking devices |
| | 13 | Pianos |
| | 14 | Without keys |
| | 16 | Constant power |
| | 19 | Electric power |
| | 24 | Pneumatic type |
| | 25 | Key actuators |
| | 26 | Grands |
| | 28 | Action above keyboard |
| | 29 | Action below keyboard |
| | 30 | Location of parts |
| | 31 | With double tracker |
| | 33 | Expression mechanism |
| | 34 |  Parts of piano moved |
| | 39 | Wind pressure varied |
| | 44 | Two cooperating pneumatics to each note |
| | 45 | Two opposing pneumatics to each note |
| | 46 | Transmission varied |
| | 47 | Systematic variations |
| | 48 | Pneumatic details |
| | 49 | Hand controllers |
| | 50 | Pneumatic construction |
| | 51 | Both primaries and secondaries |
| | 53 | Lower leaf moved |
| | 54 | Striker pneumatics in wind chest |
| | 55 | Units |
| | 57 | Tubes and junctions |
| | 58 | Bleeds |
| | 60 | Valves and seats |
| | 64 | Screening and cleaning |
| | 65 | Power pneumatics |
| | 70 | Wind-supply devices |
| Cases |
| | 83 | Wind |
| | 84 | Organs |
| | 92 | Organettes |
| | 93 | Mouth blown |
| | 94.1 | Combs |
| | 102 | Bars |
| | 103 | Bells |
| | 104 | Drums |
| | 105 | Outside players |
| | 106 | Cylinder or disk |
| | 107 | Electric or electropneumatic |
| | 108 | Cabinet type |
| | 111 | Striker details |
| | 112 | Constant power |
| | 115 | Selectors |
| | 116 | Tracker-box location |
| | 117 | Mechanical fingers |
| | 118 | Plurality of sheets |
| | 121 | Sheet not rolled |
| | 122 | Winding and rewinding |
| | 123 | With electric features |
| | 124 | For two types of rolls |
| | 125 | Shifting gear and clutch |
| | 126 | Two clutches |
| | 127 | Gears |
| | 128 | Speed control |
| | 132 | Feeding |
| | 133 | Rewinding |
| | 134 | Brakes |
| | 135 | Sheet pressers |
| | 136 | Registration |
| | 140 | Extra end holes |
| | 142 | Extra center holes |
| | 143 | Flange shifted |
| | 144 | Hand operated |
| | 145 | Transposition only |
| | 146 | Trackers and sheets |
| | 151 | Trackers |
| | 152 | Double scale |
| | 156 | Duct closers |
| | 157 | Modified for expression |
| | 158 | Metal |
| | 159 | Extensible |
| | 160 | Pneumato-electric |
| | 161 | Note sheets |
| | 167 | Key locks |
| | 168 | Couplers |
| | 169 | Indicators |
| | 170 | Combined |
| | 173 | Stringed |
| | 174 | Pianos |
| | 175 | Duplex |
| | 176 | Separable |
| | 177 | Cases |
| | 178 | Fall boards and desks |
| | 179 | Fall boards |
| | 180 | Music desks or racks |
| | 181 | Music receptacles |
| | 182 | Swells |
| | 183 | Protectors |
| | 184 | Frames, string plate and sounding boards |
| | 185 | Frames and string plates |
| | 186.1 | Frames |
| | 187 | String plates and sounding boards |
| | 188 | String plates |
| | 189 | Resonance devices |
| | 197 | Stringing |
| | 199 | Strings |
| | 200 | Tuning devices |
| | 201 | Simple pin |
| | 202 | Locking devices |
| | 204 | Worm gear |
| | 205 | Direct pull |
| | 206 | With push piece |
| | 207 | With lever |
| | 208 | Transverse pressure |
| | 209 | Bridges |
| | 216 | Expression devices |
| | 217 | Dampers lifted |
| | 218 | Dampers held |
| | 219 | Pianissimo devices |
| | 224 | Auxiliary strikers |
| | 225 | Pedal mechanism |
| | 234 | Harmonic dampers |
| | 235 | Couplers |
| | 236 | Hammers actions |
| | 256 | Bowed or violin pianos |
| | 258 | Plectrum |
| | 263 | Combined |
| | 264 | Harps |
| | 267 | Guitars |
| | 268 | Mandolins |
| | 269 | Banjos |
| | 274 | Violins |
| | 275 | Bodies |
| | 278 | Combined chin rest and support |
| | 279 | Chin rests |
| | 280 | Supports |
| | 281 | Positioning devices |
| | 282 | Bows |
| | 283 | Bow guides |
| | 284 | Dulcimers |
| | 285 | Zithers |
| | 290 | Details |
| | 291 | Bodies |
| | 293 | Necks |
| | 294 | Resonance devices |
| | 297R | Strings and fastenings |
| | 298 | Guitar bridges |
| | 299 | Guitar bridges with tailpieces |
| | 300 | Banjo tailpieces |
| | 301 | Mandolin tailpieces |
| | 302 | Violin tailpieces |
| | 303 | Spools |
| | 304 | Tuning pegs |
| | 306 | Worm gear |
| | 297S | Strings |
| | 307 | Bridges |
| | 312R | Tunings |
| | 313 | Tremolo devices |
| | 314R | Finger boards and frets |
| | 315 | Fingering devices |
| | 320 | Picking devices |
| | 323 | Hammer mechanism |
| | 325 | Bowing mechanism |
| | 327 | Instrument supports |
| | 328 | Arm, hand, or finger rests |
| | 329 | Article holders |
| | 330 | Wind |
| | 331 | Pipe organs |
| | 332 | Actions |
| | 333 | Stop chambers |
| | 334 | Single chamber |
| | 335 | Pneumatic details |
| | 337 | Electric |
| | 338 | Electropneumatic |
| Couplers |
| | 342 | Key valves |
| | 343 | Stop actions |
| | 346 | Swells |
| | 348 | Valve tremolos |
| | 349 | Pipes |
| | 351 | Reed organs |
| | 352 | Cases |
| | 354 | Folding |
| | 355 | Wind-supply devices |
| | 360 | Reed boards |
| | 363 | Reeds |
| | 365 | Key actions |
| | 369 | Stop actions |
| | 372 | Swells |
| | 373 | Couplers |
| | 374 | Fan tremolos |
| | 375 | Minor reed |
| | 376R | Accordions |
| | 376A | Attachments, supports and locks |
| | 376EA | Electronically amplified |
| | 376K | Keys and keyboards |
| | 376SM | Shift mechanisms |
| | 377 | Harmonicas |
| | 380R | Wood winds |
| | 381 | Duplex |
| | 382 | Clarinets |
| | 384 | Flutes |
| | 385R | Saxophones |
| | 386 | Pitch-changing devices |
| | 380A | Double reed |
| | 380B | Bagpipes |
| | 380C | Edge tone |
| | 387R | Brasses |
| | 402 | Rigid vibrators |
| | 411R | Drums |
| | 412 | Collapsible |
| | 413 | Cord tighteners |
| | 414 | Head material |
| | 415 | Snares |
| | 418 | Tambourines |
| | 419 | Tympani |
| | 420 | Toy |
| | 421 | Supports |
| | 411A | Unitension |
| | 411M | Mutes |
| | 411P | Practice Pads |
| | 422.1 | Drum and cymbal beaters |
| General features |
| | 423R | Keyboards |
| | 424 | Plurality of manuals |
| | 425 | Auxiliary |
| | 427 | Plurality of touch plates |
| | 429 | Curved front |
| | 430 | Key bottoms |
| | 432 | Key frames adjustable |
| | 433 | Keys |
| | 438 | Manufacturing processes |
| | 439 | Touch regulators |
| | 441 | Key holders |
| | 423A | Uniform |
| | 423B | Button type |
| | 442 | Key selectors |
| | 443 | Chord players |
| | 445 | Transposers |
| | 450 | Solo attachments |
| | 451 | Special or enharmonic scales |
| | 452R | Materials |
| | 453 | ACCESSORIES |
| | 454 | Tuning devices |
| | 461 | Recording devices |
| | 464R | Producing color or light effects |
| | 465 | Exercising devices |
| | 470R | Teaching devices |
| | 471R | Charts or boards |
| | 472 | Easel type |
| | 473 | With transposing slide |
| | 474 | With transposing dial |
| | 475 | For transcribing |
| | 471SR | Slide rules |
| | 476 | Blocks |
| | 477R | Indicators |
| | 478 | For keyboard |
| | 483.1 | Tune Sheets |
| | 484 | For tempo |
| | 485R | For fingering |
| | 477B | Twirling and conducting batons |
| | 470P | Phonograph recorders |
| | 486 | Leaf turners |
| | 487 | Motor operated |
| | 488 | Gravity operated |
| | 489 | Hand and spring operated arms |
| Spring-operated arms |
| | 500 | Single spring arm |
| | 502 | Player-operated arms |
| | 516 | Single arm |
| | 517 | Single transfer bar |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| DIGESTS | ||
| | DIG1 | PLURAL SPEAKERS |
| | DIG2 | PREFERENCE NETWORKS |
| | DIG3 | FOLDABLE; DETACHABLE; COLLAPSIBLE |
| | DIG4 | CHORUS; ENSEMBLE; CELESTE |
| | DIG5 | CHIFF |
| | DIG6 | CATHODE-RAY TUBE |
| | DIG7 | ELECTRIC KEY SWITCH STRUCTURE |
| | DIG8 | KEYED OSCILLATORS |
| | DIG9 | FILTERING |
| | DIG10 | FEEDBACK |
| | DIG11 | FREQUENCY DIVIDERS |
| | DIG12 | SIDE; RHYTHM AND PERCUSSION DEVICES |
| | DIG13 | GAS DISCHARGE TUBE |
| | DIG14 | HARMONICAS |
| | DIG15 | ACCORDIONS |
| | DIG16 | CRESCENDO |
| | DIG17 | CABINETS |
| | DIG18 | TUNING |
| | DIG19 | LIGHT SENSITIVE RESISTOR |
| | DIG20 | MONOPHONIC |
| | DIG21 | MECHANICAL RESONATOR |
| | DIG22 | CHORD ORGANS |
| | DIG23 | ELECTRONIC GATES FOR TONES |
| | DIG24 | PIEZOELECTRICAL TRANSDUCERS |
| | DIG25 | PEDAL CLAVIER |
| | DIG26 | REVERBERATION |
| | DIG27 | STEREO |
| | DIG28 | SERVICE MANUALS |
| | DIG29 | TAPE |
| | DIG30 | FRET CONTROL |