W/O; W/O/W - Class 516
WAFER - Classes 257, 438
WARD - Class 070
WASTE - Class 210
WATER - Class 122
WATER TUBES - Class 122
WAVE ENERGY - Classes 204, 330, 333, 522
WAVE FILTER - Class 333
WAVE GUIDE - Classes 330, 333
WAVE PROPAGATION CHARACTERISTIC - Class 333
WAVE SHAPING - Class 333
WAVE TRANSMISSION DEVICE - Classes 330, 333
WAVE TRANSMISSION SYSTEM - Class 333
WAVE TRAP - Class 333
WAVEGUIDE - Classes 372, 385
WAX OR WAXY - Class 428
WEB - Classes 112, 226, 428
WELL CONDUIT - Class 166
WELL ELEMENT: - Class 166
WELL FLUID: - Class 166
WELL STRUCTURE: - Class 166
WELLHEAD: - Class 166
WETTING AGENT* - Class 516
WHEEL - Class 305
WHIRLER - Class 239
WHISKER - Class 117
WINDING - Class 336
WIRE - Classes 140, 256
WIRE BOND - Class 257
WIRELESS - Class 725
WIREWORKING - Class 140
WIRING CHANNEL - Classes 257, 438
WITH - Classes 425, 528
WOOD - Classes 144, 428
WORD - Class 400
WORD-SPACE - Class 400
WORK - Classes 072, 083, 118, 173, 225, 228, 269, 407, 425
WORK PART - Class 228
WORK (n) - Class 408
WORK FUNCTION - Classes 257, 438
WORK SUPPLY - Class 225
WORK SUPPLY PACKAGE - Class 225
WORK THICKNESS - Class 083
WORK TREATMENT - Class 072
WORK, WORKPIECE - Class 227
WORK: - Classes 073, 073
WORK-FEED MEANS - Class 083
WORK-FORCER - Class 072
WORK-GRIPPING CLAMP - Class 072
WORK-INFEED - Class 408
WORKING CHAMBER - Class 418
WORKING CHAMBER - Classes 091, 092
WORKING FLUID - Classes 092, 415, 416, 418
WORKING MEMBER - Classes 091, 092, 416, 418
WORKING MEMBER POSITION RESPONSIVE MEANS - Class 060
WORKPIECE - Classes 205, 234, 407, 428
WORK-STOP ABUTMENT - Class 269
WORM GEAR - Class 475
WRAPPER - Class 053
WSI - Class 438