Source:
Downloaded and re-sequenced from http://www.uspto.com  
OR  http://patents.cnidr.org/pto/classes.html  
Each class consists of subclasses, and each subclass has a text decription
of the subclass definition. 
---------------------------------------------------------------------------
The download:

        U.S. PATENT CLASSICATIONS:
        WARNING:   Classifications change!
                   We [cnidr.org] attempt to update this material as
                   soon as we receive changes from USPTO.
       
       
     Class  51 - ABRADING
     Class 181 - ACOUSTICS
     Class 257 - ACTIVE SOLID-STATE DEVICES (E.G.,TRANSISTORS,
                          SOLID-STATE DIODES)
     Class 156 - ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE
     Class 226 - ADVANCING MATERIAL OF  INDETERMINATE LENGTH
     Class 244 - AERONAUTICS
     Class 366 - AGITATING
     Class 420 - ALLOYS OR METALLIC COMPOSITIONS
     Class  86 - AMMUNITION AND EXPLOSIVE CHARGE MAKING
     Class 102 - AMMUNITION AND EXPLOSIVES
     Class 330 - AMPLIFIERS
     Class 472 - AMUSEMENT DEVICES
     Class 273 - AMUSEMENT DEVICES:  GAMES
     Class 473 - AMUSEMENT DEVICES:  GAMES
     Class 446 - AMUSEMENT DEVICES:  TOYS
     Class 119 - ANIMAL HUSBANDRY
     Class   2 - APPAREL
     Class 223 - APPAREL APPARATUS
     Class 221 - ARTICLE DISPENSING
     Class 236 - AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION
     Class   4 - BATHS, CLOSETS, SINKS, AND SPITTOONS
     Class 136 - BATTERIES:  THERMOELECTRIC AND PHOTOELECTRIC
     Class 384 - BEARINGS
     Class   5 - BEDS
     Class 449 - BEE CULTURE
     Class 402 - BINDER DEVICE RELEASABLY ENGAGING APERTURE OR NOTCH OF SHEET
     Class   8 - BLEACHING AND DYEING;  FLUID TREATMENT AND CHEMICAL
                          MODIFICATION OF TEXTILES AND FIBERS
     Class 412 - BOOKBINDING:  PROCESS  AND APPARATUS
     Class 281 - BOOKS, STRIPS, AND LEAVES
     Class 462 - BOOKS, STRIPS, AND LEAVES FOR MANIFOLDING
     Class  12 - BOOT AND SHOE MAKING
     Class  36 - BOOTS, SHOES, AND LEGGINGS
     Class 175 - BORING OR PENETRATING THE EARTH
     Class 215 - BOTTLES AND JARS
     Class 188 - BRAKES
     Class  14 - BRIDGES
     Class 300 - BRUSH, BROOM, AND MOP MAKING
     Class  15 - BRUSHING, SCRUBBING, AND GENERAL CLEANING
     Class  24 - BUCKLES, BUTTONS, CLASPS, ETC.
     Class 441 - BUOYS, RAFTS, AND AQUATIC DEVICES
     Class 452 - BUTCHERING
     Class  79 - BUTTON MAKING
     Class  40 - CARD, PICTURE, OR SIGN EXHIBITING
     Class 502 - CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR:
                        PRODUCT OR PROCESS OF MAKING
     Class  59 - CHAIN, STAPLE, AND HORSESHOE MAKING
     Class 297 - CHAIRS AND SEATS
     Class 194 - CHECK-ACTUATED CONTROL MECHANISMS
     Class 422 - CHEMICAL APPARATUS AND PROCESS DISINFECTING,
                          DEODORIZING, PRESERVING, OR STERILIZING
     Class 260 - CHEMISTRY OF CARBON COMPOUNDS
     Class 585 - CHEMISTRY OF HYDROCARBON COMPOUNDS
     Class 423 - CHEMISTRY OF INORGANIC COMPOUNDS
     Class 436 - CHEMISTRY:  ANALYTICAL AND IMMUNOLOGICAL TESTING
     Class 204 - CHEMISTRY:  ELECTRICAL AND WAVE ENERGY
     Class 429 - CHEMISTRY:  ELECTRICAL CURRENT PRODUCING APPARATUS,
                          PRODUCT, AND PROCESS
     Class  71 - CHEMISTRY:  FERTILIZERS
     Class 518 - CHEMISTRY:  FISCHER-TROPSCH PROCESSES; OR
                                PURIFICATION OR RECOVERY OF PRODUCTS THERE OF
     Class 435 - CHEMISTRY:  MOLECULAR BIOLOGY AND MICROBIOLOGY
     Class 530 - CHEMISTRY:  NATURAL RESINS OR DERIVATIVES; PEPTIDES OR 
                          PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF
     Class  23 - CHEMISTRY:  PHYSICAL PROCESSES
     Class 279 - CHUCKS OR SOCKETS
     Class 209 - CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS
     Class 134 - CLEANING AND LIQUID CONTACT WITH SOLIDS
     Class 292 - CLOSURE FASTENERS
     Class 192 - CLUTCHES AND POWER-STOP CONTROL
     Class 118 - COATING APPARATUS
     Class 401 - COATING IMPLEMENTS WITH MATERIAL  SUPPLY
     Class 427 - COATING PROCESSES
     Class 341 - CODED DATA GENERATION OR CONVERSION
     Class 372 - COHERENT LIGHT GENERATORS
     Class 453 - COIN HANDLING
     Class 431 - COMBUSTION
     Class 367 - COMMUNICATIONS, ELECTRICAL:  ACOUSTIC WAVE SYSTEMS AND DEVICES
     Class 342 - COMMUNICATIONS:  DIRECTIVE  RADIO WAVE SYSTEMS AND DEVICES
                          (E.G., RADAR, RADIO NAVIGATION)
     Class 340 - COMMUNICATIONS:  ELECTRICAL
     Class 343 - COMMUNICATIONS:  RADIO WAVE ANTENNAS
     Class 252 - COMPOSITIONS
     Class 507 - COMPOSITIONS OR METHODS OF PREPARATION OR MERE METHODS OF
                    USING SAID COMPOSITIONS OR A COMPOUND:  FOR EARTH BORING OR
                    FOR PREVENTING CONTAMINANT DEPOSITS IN PETROLEUM OIL
                    CONDUITS
     Class 501 - COMPOSITIONS:  CERAMIC
     Class 106 - COMPOSITIONS:  COATING OR PLASTIC
     Class   7 - COMPOUND TOOLS
     Class 159 - CONCENTRATING EVAPORATORS
     Class 193 - CONVEYORS, CHUTES, SKIDS, GUIDES, AND WAYS
     Class 406 - CONVEYORS:  FLUID CURRENT
     Class 198 - CONVEYORS:  POWER-DRIVEN
     Class 147 - COOPERING
     Class 460 - CROP THRESHING OR SEPARATING
     Class 380 - CRYPTOGRAPHY
     Class  30 - CUTLERY
     Class 407 - CUTTERS, FOR SHAPING
     Class  83 - CUTTING
     Class 408 - CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL
     Class 329 - DEMODULATORS
     Class 433 - DENTISTRY
     Class 232 - DEPOSIT AND COLLECTION RECEPTACLES
     Class 222 - DISPENSING
     Class 202 - DISTILLATION:  APPARATUS
     Class 203 - DISTILLATION:  PROCESSES, SEPARATORY
     Class 201 - DISTILLATION:  PROCESSES, THERMOLYTIC
     Class 424 - DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS
     Class 514 - DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS
     Class  34 - DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS
     Class 369 - DYNAMIC INFORMATION STORAGE OR RETRIEVAL
     Class 360 - DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL
     Class 172 - EARTH WORKING
     Class 434 - EDUCATION AND DEMONSTRATION
     Class 219 - ELECTRIC HEATING
     Class 313 - ELECTRIC LAMP AND DISCHARGE DEVICES
     Class 314 - ELECTRIC LAMP AND DISCHARGE DEVICES:  CONSUMABLE ELECTRODES
     Class 315 - ELECTRIC LAMP AND DISCHARGE DEVICES:  SYSTEMS
     Class 445 - ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE 
                          MANUFACTURING
     Class 363 - ELECTRIC POWER CONVERSION SYSTEMS
     Class 392 - ELECTRIC RESISTANCE HEATING DEVICES
     Class 381 - ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES
     Class 364 - ELECTRICAL COMPUTERS AND DATA PROCESSING SYSTEMS
     Class 439 - ELECTRICAL CONNECTORS
     Class 310 - ELECTRICAL GENERATOR OR MOTOR STRUCTURE
     Class 338 - ELECTRICAL RESISTORS
     Class 307 - ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS
     Class 377 - ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS:
                          CIRCUITS AND SYSTEMS
     Class 320 - ELECTRICITY:  BATTERY AND CONDENSER CHARGING AND DISCHARGING
     Class 200 - ELECTRICITY:  CIRCUIT MAKERS AND BREAKERS
     Class 174 - ELECTRICITY:  CONDUCTORS AND INSULATORS
     Class 361 - ELECTRICITY:  ELECTRICAL SYSTEMS AND DEVICES
     Class 337 - ELECTRICITY:  ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES
     Class 335 - ELECTRICITY:  MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND
                          ELECTROMAGNETS
     Class 324 - ELECTRICITY:  MEASURING AND TESTING
     Class 318 - ELECTRICITY:  MOTIVE POWER SYSTEMS
     Class 388 - ELECTRICITY:  MOTOR CONTROL SYSTEMS
     Class 323 - ELECTRICITY:  POWER SUPPLY OR REGULATION SYSTEMS
     Class 322 - ELECTRICITY:  SINGLE GENERATOR SYSTEMS
     Class 191 - ELECTRICITY:  TRANSMISSION TO VEHICLES
     Class 205 - ELECTROLYSIS:  PROCESSES, COMPOSITIONS USED THEREIN,
                          AND METHODS OF PREPARING THE COMPOSITIONS
     Class 902 - ELECTRONIC FUNDS TRANSFER
     Class 187 - ELEVATORS
     Class 227 - ELONGATED-MEMBER-DRIVING APPARATUS
     Class 474 - ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS
     Class 229 - ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES
     Class 371 - ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY
     Class  37 - EXCAVATING
     Class 482 - EXERCISE DEVICES
     Class 411 - EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR
                          LOCKED-THREADED FASTENERS
     Class  92 - EXPANSIBLE CHAMBER DEVICES
     Class 149 - EXPLOSIVE AND THERMIC COMPOSITIONS OR CHARGES
     Class 358 - FACSIMILE OR TELEVISION RECORDING
     Class 168 - FARRIERY
     Class 256 - FENCES
     Class 182 - FIRE ESCAPE, LADDER, OR SCAFFOLD
     Class 169 - FIRE EXTINGUISHERS
     Class  42 - FIREARMS
     Class  43 - FISHING, TRAPPING, AND VERMIN DESTROYING
     Class 383 - FLEXIBLE BAGS
     Class 160 - FLEXIBLE OR PORTABLE CLOSURE, PARTITION, OR PANEL
     Class 141 - FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING
                          MEANS
     Class 137 - FLUID HANDLING
     Class 416 - FLUID REACTION SURFACES (I.E., IMPELLERS)
     Class 239 - FLUID SPRINKLING, SPRAYING, AND DIFFUSING
     Class 303 - FLUID-PRESSURE BRAKE AND ANALOGOUS SYSTEMS
     Class 426 - FOOD OR EDIBLE MATERIAL:  PROCESSES, COMPOSITIONS, AND PRODUCTS
     Class  99 - FOODS AND BEVERAGES:  APPARATUS
     Class 450 - FOUNDATION GARMENTS
     Class 410 - FREIGHT ACCOMMODATION ON FREIGHT CARRIER
     Class 476 - FRICTION GEAR TRANSMISSION SYSTEMS OR COMPONENTS
     Class  44 - FUEL AND RELATED COMPOSITIONS
     Class 110 - FURNACES
     Class 261 - GAS AND LIQUID CONTACT APPARATUS
     Class  55 - GAS SEPARATION
     Class  96 - GAS SEPARATION:  APPARATUS
     Class  95 - GAS SEPARATION:  PROCESSES
     Class  48 - GAS:  HEATING AND ILLUMINATING
     Class 409 - GEAR CUTTING, MILLING, OR PLANING
     Class 935 - GENETIC ENGINEERING:  RECOMBINANT DNA TECHNOLOGY,
                          HYBRID OR FUSED CELL TECHNOLOGY, AND
                          RELATED MANIPULATIONS OF NUCLEIC ACIDS
     Class  33 - GEOMETRICAL INSTRUMENTS
     Class  65 - GLASS  MANUFACTURING
     Class 294 - HANDLING:  HAND AND HOIST-LINE IMPLEMENTS
     Class  54 - HARNESS
     Class  56 - HARVESTERS
     Class 588 - HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT
     Class 470 - HEADED FASTENER, OR WASHER MAKING:  PROCESS AND APPARATUS
     Class 165 - HEAT EXCHANGE
     Class 432 - HEATING
     Class 237 - HEATING SYSTEMS
     Class 108 - HORIZONTALLY SUPPORTED PLANAR SURFACES
     Class 368 - HOROLOGY:  TIME MEASURING SYSTEMS OR DEVICES
     Class 405 - HYDRAULIC AND EARTH ENGINEERING
     Class 362 - ILLUMINATION
     Class 382 - IMAGE ANALYSIS
     Class 494 - IMPERFORATE BOWL:  CENTRIFUGAL SEPARATORS
     Class 254 - IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE
     Class 347 - INCREMENTAL PRINTING OF SYMBOLIC INFORMATION
     Class 376 - INDUCED NUCLEAR REACTIONS:  PROCESSES, SYSTEMS, AND ELEMENTS
     Class 336 - INDUCTOR DEVICES
     Class 373 - INDUSTRIAL ELECTRIC HEATING FURNACES
     Class 395 - INFORMATION PROCESSING SYSTEM ORGANIZATION
     Class 123 - INTERNAL-COMBUSTION ENGINES
     Class 477 - INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL
     Class  63 - JEWELRY
     Class 277 - JOINT PACKING
     Class 403 - JOINTS AND CONNECTIONS
     Class 289 - KNOTS AND KNOT TYING
     Class 280 - LAND VEHICLES
     Class 278 - LAND VEHICLES:  ANIMAL DRAFT APPLIANCES
     Class 296 - LAND VEHICLES:  BODIES AND TOPS
     Class 298 - LAND VEHICLES:  DUMPING
     Class 301 - LAND VEHICLES:  WHEELS AND AXLES
     Class  69 - LEATHER MANUFACTURES
     Class 122 - LIQUID HEATERS AND VAPORIZERS
     Class 210 - LIQUID PURIFICATION OR SEPARATION
     Class  70 - LOCKS
     Class 184 - LUBRICATION
     Class  74 - MACHINE ELEMENT OR MECHANISM
     Class 493 - MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER
                          MANUFACTURING FROM A SHEET OR WEB
     Class 440 - MARINE PROPULSION
     Class 414 - MATERIAL OR ARTICLE HANDLING
     Class  73 - MEASURING AND TESTING
     Class 124 - MECHANICAL GUNS AND PROJECTORS
     Class 186 - MERCHANDISING
     Class  72 - METAL DEFORMING
     Class 164 - METAL FOUNDING
     Class 228 - METAL FUSION BONDING
     Class  76 - METAL TOOLS AND IMPLEMENTS, MAKING
     Class 148 - METAL TREATMENT
     Class  29 - METAL WORKING
     Class 266 - METALLURGICAL APPARATUS
     Class 196 - MINERAL OILS:  APPARATUS
     Class 208 - MINERAL OILS:  PROCESSES AND PRODUCTS
     Class 299 - MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL
     Class 328 - MISCELLANEOUS ELECTRON SPACE DISCHARGE DEVICE SYSTEMS
     Class  16 - MISCELLANEOUS HARDWARE
     Class 332 - MODULATORS
     Class 180 - MOTOR VEHICLES
     Class  91 - MOTORS:  EXPANSIBLE CHAMBER TYPE
     Class 185 - MOTORS:  SPRING, WEIGHT, OR ANIMAL POWERED
     Class  49 - MOVABLE OR REMOVABLE CLOSURES
     Class 800 - MULTICELLULAR LIVING ORGANISMS AND UNMODIFIED PARTS THEREOF
     Class 370 - MULTIPLEX COMMUNICATIONS
     Class  84 - MUSIC
     Class 163 - NEEDLE AND PIN MAKING
     Class 385 - OPTICAL WAVEGUIDES
     Class 351 - OPTICS:  EYE EXAMINING, VISION TESTING AND CORRECTING
     Class 353 - OPTICS:  IMAGE PROJECTORS
     Class 356 - OPTICS:  MEASURING AND TESTING
     Class 352 - OPTICS:  MOTION PICTURES
     Class 359 - OPTICS:  SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS
     Class  89 - ORDNANCE
     Class 532 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 534 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 536 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 540 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 544 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 546 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 548 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 549 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 552 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 554 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 556 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 558 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 560 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 562 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 564 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 568 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 570 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532 - 570 SERIES
     Class 987 - ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR 
                    CONTAINING A METAL ATOM OF THE TO 8TH GROUP OF THE
                    PERIODIC SYSTEM
     Class 331 - OSCILLATORS
     Class 224 - PACKAGE AND ARTICLE CARRIERS
     Class  53 - PACKAGE MAKING
     Class 162 - PAPER MAKING AND FIBER LIBERATION
     Class 930 - PEPTIDE OR PROTEIN SEQUENCE
     Class 512 - PERFUME COMPOSITIONS
     Class 355 - PHOTOCOPYING
     Class 354 - PHOTOGRAPHY
     Class 285 - PIPE JOINTS OR COUPLINGS
     Class 138 - PIPES AND TUBULAR CONDUITS
     Class 475 - PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS
     Class  47 - PLANT HUSBANDRY
     Class 504 - PLANT PROTECTING AND REGULATING COMPOSITIONS
     Class 111 - PLANTING
     Class PLT - PLANTS
     Class 264 - PLASTIC AND NONMETALLIC ARTICLE  SHAPING OR TREATING: PROCESSES
     Class 425 - PLASTIC ARTICLE OR EARTHEN- WARE SHAPING OR TREATING: APPARATUS
     Class 419 - POWDER METALLURGY PROCESSES
     Class  60 - POWER PLANTS
     Class 100 - PRESSES
     Class 290 - PRIME-MOVER DYNAMO PLANTS
     Class 283 - PRINTED MATTER
     Class 101 - PRINTING
     Class 623 - PROSTHESIS (I.E., ARTIFICIAL BODY MEMBERS), PARTS
                          THEREOF, OR AIDS AND ACCESSORIES THEREFOR
     Class 375 - PULSE OR DIGITAL COMMUNICATIONS
     Class 417 - PUMPS
     Class 150 - PURSES, WALLETS, AND PROTECTIVE COVERS
     Class 250 - RADIANT ENERGY
     Class 430 - RADIATION  IMAGERY  CHEMISTRY:  PROCESS, COMPOSITION,
                          OR PRODUCT THEREOF
     Class 213 - RAILWAY DRAFT APPLIANCES
     Class 258 - RAILWAY MAIL DELIVERY
     Class 105 - RAILWAY ROLLING STOCK
     Class 246 - RAILWAY SWITCHES AND SIGNALS
     Class 295 - RAILWAY WHEELS AND AXLES
     Class 104 - RAILWAYS
     Class 238 - RAILWAYS:  SURFACE TRACK
     Class 220 - RECEPTACLES
     Class 503 - RECORD RECEIVER HAVING PLURAL INTERACTIVE LEAVES OR A
                          COLOR FORMER, METHOD OF USE, OR DEVELOPER THEREFOR
     Class 346 - RECORDERS
     Class  62 - REFRIGERATION
     Class 235 - REGISTERS
     Class 152 - RESILIENT TIRES AND WHEELS
     Class 404 - ROAD STRUCTURE, PROCESS, OR APPARATUS
     Class 901 - ROBOTS
     Class 492 - ROLL OR ROLLER
     Class 418 - ROTARY EXPANSIBLE CHAMBER DEVICES
     Class 415 - ROTARY KINETIC FLUID MOTORS OR PUMPS
     Class 464 - ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE
                          COUPLINGS FOR ROTARY SHAFTS
     Class 109 - SAFES, BANK PROTECTION, OR A RELATED DEVICE
     Class 234 - SELECTIVE CUTTING (e.g., PUNCHING)
     Class 345 - SELECTIVE VISUAL DISPLAY SYSTEMS
     Class 437 - SEMICONDUCTOR DEVICE MANUFACTURING:  PROCESS
     Class 225 - SEVERING BY TEARING OR BREAKING
     Class 112 - SEWING
     Class 271 - SHEET FEEDING OR DELIVERING
     Class 413 - SHEET METAL CONTAINER MAKING
     Class 270 - SHEET-MATERIAL ASSOCIATING
     Class 114 - SHIPS
     Class 116 - SIGNALS AND INDICATORS
     Class 117 - SINGLE-CRYSTAL, ORIENTED-CRYSTAL, AND EPITAXY GROWTH
                          PROCESSES; NON-COATING APPARATUS THEREFOR
     Class 241 - SOLID MATERIAL COMMINUTION OR DISINTEGRATION
     Class 206 - SPECIAL RECEPTACLE OR PACKAGE
     Class  75 - SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR
                          USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS,
                          AND LOOSE METAL PARTICULATE MIXTURES
     Class 267 - SPRING DEVICES
     Class 249 - STATIC  MOLDS
     Class 365 - STATIC INFORMATION STORAGE AND RETRIEVAL
     Class  52 - STATIC STRUCTURES (E.G., BUILDINGS)
     Class 428 - STOCK MATERIAL OR MISCELLANEOUS ARTICLES
     Class 125 - STONE WORKING
     Class 126 - STOVES AND FURNACES
     Class 127 - SUGAR, STARCH, AND CARBOHYDRATES
     Class 505 - SUPERCONDUCTOR TECHNOLOGY:  APPARATUS, MATERIAL, PROCESS
     Class 248 - SUPPORTS
     Class 312 - SUPPORTS:  CABINET STRUCTURE
     Class 211 - SUPPORTS:  RACKS
     Class 604 - SURGERY
     Class 606 - SURGERY
     Class 600 - SURGERY   see class 128
     Class 128 - SURGERY.  see class 600
     Class 601 - SURGERY:  KINESITHERAPY
     Class 607 - SURGERY:  LIGHT, THERMAL, AND ELECTRICAL APPLICATION
     Class 602 - SURGERY:  SPLINT, BRACE, OR BANDAGE
     Class 521 - SYNTHETIC RESINS
     Class 520 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 524 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 523 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 522 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 525 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 526 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 527 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 528 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE
                       CLASS 520 SERIES
     Class 455 - TELECOMMUNICATIONS
     Class 178 - TELEGRAPHY
     Class 379 - TELEPHONIC COMMUNICATIONS
     Class 348 - TELEVISION
     Class 135 - TENT, CANOPY, UMBRELLA, OR CANE
     Class  87 - TEXTILES:  BRAIDING, NETTING, AND LACE MAKING
     Class  26 - TEXTILES:  CLOTH FINISHING
     Class  19 - TEXTILES:  FIBER PREPARATION
     Class  68 - TEXTILES:  FLUID TREATING APPARATUS
     Class  38 - TEXTILES:  IRONING OR SMOOTHING
     Class  66 - TEXTILES:  KNITTING
     Class  28 - TEXTILES:  MANUFACTURING
     Class  57 - TEXTILES:  SPINNING, TWISTING, AND TWINING
     Class 139 - TEXTILES:  WEAVING
     Class 374 - THERMAL MEASURING AND TESTING
     Class 131 - TOBACCO
     Class 132 - TOILET
     Class 483 - TOOL CHANGING
     Class 173 - TOOL DRIVING OR IMPACTING
     Class  81 - TOOLS
     Class 291 - TRACK SANDERS
     Class 212 - TRAVERSING HOISTS
     Class 190 - TRUCKS AND HAND CARRIED LUGGAGE
     Class 334 - TUNERS
     Class  82 - TURNING
     Class 199 - TYPE CASTING
     Class 276 - TYPESETTING
     Class 400 - TYPEWRITING MACHINES
     Class  27 - UNDERTAKING
     Class 171 - UNEARTHING PLANTS OR BURIED OBJECTS
     Class 251 - VALVES AND VALVE ACTUATION
     Class 293 - VEHICLE FENDERS
     Class 454 - VENTILATION
     Class 333 - WAVE TRANSMISSION LINES AND NETWORKS
     Class 177 - WEIGHING SCALES
     Class 166 - WELLS
     Class 305 - WHEEL SUBSTITUTES FOR LAND VEHICLES
     Class 157 - WHEELWRIGHT MACHINES
     Class 231 - WHIPS AND WHIP APPARATUS
     Class 242 - WINDING, TENSIONING, OR GUIDING
     Class 245 - WIRE FABRICS AND STRUCTURE
     Class 140 - WIREWORKING
     Class 142 - WOOD TURNING
     Class 217 - WOODEN RECEPTACLES
     Class 144 - WOODWORKING
     Class 269 - WORK HOLDERS
     Class 378 - X-RAY OR GAMMA RAY SYSTEMS OR DEVICES
 
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