Index to the US Patent Classification

Index to the US Patent Classification

What follows is part of the Index to the US Manual of Classifications for patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retreive patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


PACEMAKER ........................... 607/9+

PACIFIERS ........................... 606/234+
  DESIGN ............................D24/194+

PACK
  ADVANCING AND FEEDING SHEETS FROM .271/8.1+
     PACK HOLDERS ...................271/145+
  ANIMAL
     LOAD ATTACHING MEANS ...........224/905*
  CAMERA ............................354/174+
  FIREARM ...........................42/88+
  FORMING BY RECEIVING SHEETS .......271/278+
  JOGGER ............................271/221+
  METAL FOIL FORMATION ..............29/17.4+
  NUCLEAR FUEL COMPONENTS ...........376/434
  PACKET
     CLASPING OR HOLDING DEVICES ....24/17.R+
     INSERTING BINDING LOOPS ........227/77
     MAKING AND WRAPPING ............53/206
     POSTAL CARD TYPE ...............229/92.8
  PARACHUTE .........................244/148
  SADDLE ............................54/37.1


PACKAGE ............................. 206
  ADHESIVE ..........................206/813*
  AUTOMATIC FILLING AND WEIGHING ....177/52+
  BLISTER ...........................206/461+
  BUTTON EYELET OR RIVET ............206/348
  CHEWING GUM .......................206/800*
  COINS .............................206+
     CARD TYPE ......................229/92.9
     PAPER WRAPPER ..................229/87.2
  COSMETIC ARTICLE ..................206/823*
  DESIGN ............................D09
  DETERGENT CONTAINING ..............252/90+
  EMERGENCY PACKS ...................206/803*
  FASTENINGS OR TIES ................24/16.R+
  FILLER FOR SPACE ..................206/814*
  FINGER OPENING ....................206/815*
  FIRE KINDLING .....................44/541
  FIRST AID PACKS ...................206/803*
  FLARES ............................206/803*
  FLEXIBLE CLOSURE, EG SLIDING
     DESK TOP TYPE ..................206/816*
  FOLLOWER ..........................206/817*
  LAND VEHICLE COMPARTMENT ..........296/37.1+
  LIVING FUNGI FERMENT CONTAINING ...435
  LUBRICANT CONTAINING ..............252/10
  MAGNET ............................206/818*
  MAIL BOX CLIPS OR POCKETS .........232/33
  MAKING ............................53
  MATERIAL ..........................206/819*
  MEDICINAL CONTENT .................206/828*
  NAIL AND STAPLE ...................206/338
  PACKAGE AND ARTICLE CARRIERS ......224
     SEWING MACHINE CASE ............312/208.6
  PLANT .............................47/84+
  POWDER PUFF .......................206/823*
  RECOIL-TYPE RETAINER ..............206/825*
  REGISTERS OPERATED BY .............235/98.R
  RUBBER BAND .......................206/805*
  SAUSAGE SHIRRED CASING ............206/802*
  SEPARABLE, STRIP-LIKE PLURAL ITEMS 206/820*
  SHEET MATERIAL FOLDING ............270/39+
  SPECIAL SHAPE .....................206/822*
  STACKING MEMBER ...................206/821*
  SUCTION CUP ADJUNCT ...............206/829*
  SUSPENSION ........................206/806*
  TAMPER-PROOF ......................206/807*
  TEAR APERTURES FOR ROLL, STRIP, OR 206/824*
     SHEET ..........................206/824*
  TEXTILE YARN OR CLOTH
     LAUNDERING OR CLEANING METHODS .8/154
     LIQUID TREATING FOR CLEANING ...68
     THREAD FINISHING ...............28/217+
  TIES ..............................24/16.R+
  TOILET ARTICLE ....................206/823*
  TOWEL, PACKAGED ...................206/812*
  VACUUM ............................206/829*
  WATER TREATING AGENT CONTAINING ...252/176
  WATERPROOF ........................206/811*
  WOUND STRAND ......................242/159+
  WRAPPER ...........................229/87.1+
     GIFT WRAP ......................229/87.19
  WRAPPER, PACKAGING BAG ............D09/305
  X-TYPE ............................206/809*
  ZIPPER, IE RECEPTACLE SECUREMENT ..206/810*

PACKAGING METHODS
  AUTOMATIC OR TRIGGERED CONTROL ....53/52+
  BAGS, WRAPPERS, TUBES .............D09/305
  BALING ............................10/1+
  BINDING ...........................10/1+
  CIGAR AND CIGARETTE MAKING ........131/283+
  CLOSING PACKAGES ..................53/285+
  COLLAR, CUFF AND BOSOM MAKING
     COMBINED .......................53/117
  CONTAINERS ........................D09/414+
  CONTENTS MATERIAL TREATING ........53/111.R+
  DEPOSITING ARTICLES INTO
     RECEPTACLES ....................53/235+
  FILLING AND CLOSING PORTABLE       53/266.1+
     RECEPTACLES ....................53/266.1+
  FOODS .............................426/392+
     IN LIQUIDS .....................426/392+
  GROUP FORMING INTO UNIT ...........53/147+
  NEEDLES AND PINS ..................227/25
  PLUG TOBACCO MAKING COMBINED ......131/112+
  RECEPTACLE FILLING & CLOSING ......53/467+
  RECEPTACLE OPENING ................53/381.1+
  TEXTILE STRANDS ...................28/289+
  WRAPPING MACHINES .................53/203+

PACKER
  WELL ..............................166/179+
     CLOSING PORT ...................166/141
     HANDLING .......................166/373+
     PRESET .........................166/114
     PRESET CONDUIT CARRIED .........166/116
     WITH EXPANDING ANCHOR ..........166/118+
     WITH OUTWARD PRESSURE MEANS ....166/101
     WITH PASSAGE CONTROL ...........166/142+
     WITH PUMP OR PLUNGER ...........166/106


PACKING METHOD SEE STACK ............ 229/87.1+
  BAGS & WRAPPERS ...................D09/305
  CARTRIDGE .........................86/47
  CASES AND MATERIALS
     DESIGN .........................D09
     FOR CARTRIDGES .................206/3
     FOR CHEMICALS ..................206/524.1+
     FOR CIGARS AND CIGARETTES ......206/242+
     FOR CYCLES .....................217/37+
     FOR METAL LEAF .................206/71
     FOR PHOTOGRAPHIC PAPERS ........206/455
  CIGAR BUNDLING ....................131/107
  DISPENSING DEVICES ................222/143
  FELTING ROLL PACK .................28/125+
     CLOSURE WITH GASKET OR PACKING .220/378+
  FOODS .............................426/392+
  JOINTS ............................277
     BOTTLE CAP .....................215/341+
     CLOSURE ........................220/200+
     CUP OR FLANGE TYPE .............277/212.R
     DISPENSER OUTLET ...............222/512
     DISPENSER OUTLET ...............222/542
     PIPE JOINT .....................285/335+
     PREFABRICATED UNIT .............277/35
     RECEPTACLE SEAM ................220/681
     VALVE ..........................251/356+
  MATERIALS
     FOR SENSITIVE PLATES ...........206/454+
  MOLDED SEPARATOR SHEETS ...........D09/456
  PISTON ............................277
     RING MAKING ....................29/888.7+
  PORTABLE RECEPTACLES
     BAGS AND SACKS .................53/570+
     CIGARETTE ......................53/148+
     UNIFORM DENSITY ................141/71+
  RECEPTACLE FILLING & CLOSING ......53/467+
  SAND FOUNDING MOLDS ...............164/37+
  TOBACCO PLUG ......................131/112+
  TOOLS .............................81/8.1
  WEATHER STRIPS ....................49/475.1+
  WRAPPERS ..........................229/87.1+

PACKS
  CHANGE FOR PLATES AND FILMS .......354/276+
  PHOTOGRAPHIC PLATE ................354/276+


PAD
  ABRASIVE SHEET HOLDING ............51/358+
     HANDLED ........................51/392+
  ABSORBENT .........................604/358
  BODY ..............................2/267+
  BUTTON COVERING ...................24/114
  CLEANING MATERIAL SUPPLY COMBINED .401/261+
  CLOSET SEAT COVER .................4/245.1+
  DESK OR TYPEWRITER ................D19/99
  DIAPER ............................604/358
  ELECTRICALLY HEATED ...............219/528+
  FOOT ..............................36/71
  FURNITURE .........................248/188.8
  GROUND MAT ........................5/420
  HAND ..............................2/20
  HARNESS ...........................54/65+
     DESIGN .........................D30/134+
  HORSESHOE .........................168/26+
     DESIGN .........................D30/147+
     MODIFIED SHOE ..................168/12+
  HOT POT HOLDERS ...................2/20
     HAND MANIPULABLE ...............294/25
     HANDLE TYPE ....................16/116.R+
     KNITTED BASE ...................66/190+
     LIFTERS ........................294/27.1+
     OF TEXTILE MATERIAL ............428/224+
  INKING AND COPYING ................118/264+
     PRINTING MACHINE HAVING ........101
  KNEE ..............................2/24
  LABEL PASTING .....................156
  LADDER FOOT .......................182/108+
  LOCK
     SHACKLES .......................70/53
  MATTRESS ..........................5/500
  PEDAL .............................74/563
  RECEPTOR
     CATAMENIAL AND DIAPER ..........604/358+
  SHOE ..............................36/71
     HEEL CUSHIONING ................36/37
  SKIRT COMBINED ....................2/215
  SLEEPING BAG WITH PAD .............5/413
  STAIR .............................428
     CONFORMING TO TREAD NOSE .......52/179
  TABLE .............................428/53+
  TABLE, COVER OR CASING FOR ........428/68+
  TABLE, SCUFF PLATE ................248/346.1
  TABLE, SECTIONAL LAYER FOR ........428/44+
  TRUSS .............................128/112.1+


PADDED
  BOTTLE WRAPPER ....................229/91
  CONTAINER WITH SHOCK PROTECTION ...206/521+
  CRATE .............................217/53

PADDLE AND PADDLE WHEEL ............. 416/78+
  AIRCRAFT PROPULSION ...............244/70+
  AIRCRAFT SUSTENSION
     HEAVIER THAN AIR ...............244/4.R+
     LIGHTER THAN AIR ...............244/27+
  BOAT PROPULSION MANUAL ............440/21
  DESIGN ............................D12/306
  GAME APPARATUS ....................D21/48
  PUMPS .............................417/436
  SHIP AND BOAT PROPULSION ..........440/90+
     RETRACTABLE BLADES .............440/92+
  SHIP STEERING .....................114/147+
  SHIPS .............................114/58
  WATER MOTORS ......................416/78

PADLOCK ............................. 70/20+
  CONDITION INDICATOR COMBINED
     RECORDER .......................70/435
     REGISTER .......................70/437
  DESIGN ............................D08/334+
  LATCH COMBINED ....................292
     DESIGN .........................D08/334+

PAIL (SEE BUCKET; RECEPTACLE)
  MILK ..............................220/9.1
     MAKING .........................413/69+
     WITH STRAINER ..................210/464+
  SCRUB .............................15/264
  WINDING MATERIAL APPLYING .........242/7.22
     METHOD .........................242/7.2


PAINT ............................... 106
  ANTICORROSIVE .....................106/14.5+
  ANTIFOULING .......................106/15.5+
  ARTISTS BOX .......................206/1.7
  BRUSHES ...........................15/159.1+
     DESIGN .........................D04
     MATERIAL SUPPLY COMBINED .......401/268+
  DRIER .............................106/310
  LUMINOUS
     INORGANIC ......................252/301.6R
     ORGANIC ........................252/301.16
     RADIOACTIVE ....................252/625+
     SIGNS ..........................40/542
  MILL ..............................241
  MIXER .............................366/605*
  PAINTERS EQUIPMENT
     ARTISTS BOXES ..................206/1.7+
     BRUSHES ........................15/159.1+
       DESIGN .......................D04
       GRAINING TOOL ................D08
       ROLLER TYPE ..................D04/122+
     EASELS .........................248/441.1+
     FABRIC STRETCHING FRAMES .......160/374.1
     STENCILS SEE STENCIL
     TEACHING .......................434/84
  REMOVING ..........................134/38
  REMOVING-BURNING TOOL .............D08/29.1
  ROLLER TRAY .......................D32/53.1
  ROLLERS & TRAYS FOR ...............D04/122+
  SCRAPER ...........................D32/46+

PAJAMAS ............................. 2/83
  DESIGN ............................D02/718+

PALLADIUM (SEE PLATINUM)
  ALLOYS ............................420/463


PALLET SEE PAWL
  BED CLOTHING ......................5/482
  CONTAINER WITH ....................206/386
  DENTAL MIXING SLAB ................433/49
  HAWK ..............................294/3.5
  HOROLOGICAL DRIVE .................368/131
  MOLD ..............................425/253+
     CONCRETE OR CERAMIC TYPE .......425/253
  ORGAN VALVE .......................84/368
  SYNTHETIC PLASTIC INDUSTRIAL
     PLATFORM .......................108/901*
     MADE WITH DEFORMABLE INTEGRAL
       FASTENING ELEMENTS ...........108/902*
  TYPE FOR LIFT TRUCKS ..............108/51.1+

PALMITIC ACID ....................... 554/1+

PAMPHLET
  COVERING ..........................412/4+
  DISTRIBUTION FROM AIRCRAFT ........40/216


PAN SEE POT
  ASH
     BOILER FEED PREHEATER COMBINED .122/413
     FURNACE ........................110/166+
     STOVE ..........................126/243+
  BED ...............................4/450+
  BOILER ............................122/394
     IN STEAM SPACE .................122/435+
     WITH BLOWOFF ...................122/386
  CARBONLESS ........................503/200+
  CLOSET BOWL COMBINED ..............4/429+
  CLOSET BOWL VALVE .................4/442+
  COOKING CONTAINER .................D07/354+
  DRIP SEE DRIP PAN
  DRYING ............................34/237+
     HOUSED OR SUPPORTED ............34/192+
  DUST ..............................15/257.1+
  EVAPORATING AND CONCENTRATING
     CLOSED .........................159/22+
     COMBINED OPEN AND CLOSED .......159/21
     OPEN ...........................159/32+
  LAND VEHICLE DRIP .................296/38
  LIQUID FUEL BURNER ................431/331+
  LUBRICATOR DRIP CATCHING ..........184/106
  MILL ..............................241/107+
  MOTOR VEHICLE SPLASH ..............180/69.1
  PAN SHAPED METAL BENDING DIES .....72/394+
  RAILWAY TENDER COAL FEED ..........105/235
  SCALE .............................177/262+
  STOVE DRIP ........................126/51
  STREET SWEEPER ELEVATOR ...........15/85
  WATER HEATING .....................126/373

PANCAKE
  FRYER .............................99/422+
  TURNER ............................294/7+

PANCREAS EXTRACTS ................... 530/845*
  MEDICINE CONTAINING ...............514/3+


PANE, WINDOW (SEE PANEL)
  FASTENERS .........................52/764+
  HERMETICALLY SEALED ...............428/34
  LAMINATED GLASS ...................428/426+
  PARALLEL PANES ....................52/398+
     DRIER ..........................52/171+
     RESILIENTLY SPACED .............52/398
     VENTED .........................52/209+
  VENTILATED ........................454/212


PANEL
  BED ...............................5/280
  BOARD SWITCHBOARDS ................361/627+
     TELEPHONE ......................335/108+
  BUILDING COMPONENTS (SEE BLOCK) ...52
     ADHERED TILE ...................52/390+
     ATTACHED HANDLE ................52/125.2+
     CORRUGATED COMPONENT ...........52/795+
     DIMPLED ........................52/792
     EDGED LAMINATED ................52/783+
     EDGED LAMINATED AND SEPARATE ...52/821+
     EDGED RESILIENT ................52/393
     EDGEWISE CONNECTED .............52/578+
     EMBOSSED .......................52/792
     HOLLOW .........................52/785
     INTEGRAL REINFORCED ............52/630
     INTERNAL FASTENER RECEIVED .....52/787
     MULTICELLULAR CORE .............52/806+
     ORNAMENTAL .....................52/311.1+
     PARTITION ......................52/238.1+
     PERFORATE SHEET ................52/794
     PERFORATE SHEET EDGING          52/815
       SEPARATE .....................52/815
     SANDWICH TYPE ..................52/785+
     SHAFT ATTACHED .................52/474+
     SHIELD .........................52/202+
     STONELIKE ......................52/596+
     SUB-STRUCTURE ATTACHED .........52/506+
  CASKET SLIDING PANEL ..............27/15
  CLOSURE FASTENER OPERATOR .........292/93
  DECORATIVE SECTIONAL LAYER ........428/44+
  DECORATIVE SHEET COVER OR CASING ..428/68+
  DISC ..............................428/64+
  EDGE LIGHTED ......................362/31
  FASTENERS .........................24/573.2
  FENCES ............................256/24+
     PANEL ELEMENT ..................256/73
  FLEXIBLE ..........................160
  FOR FLOOR,WALL,ROOF ...............D25/138+
  HANGERS ...........................16/87.R+
  HEAT EXCHANGER ....................165/168+
  HEATING STOVE .....................126/64
     DOOR TRANSPARENT ...............126/200
  JOINTS, READILY DISENGAGEABLE .....403/DIG.1
  MIRROR WITH BACKING ...............52/786
  MOUNTING FOR INSTRUMENT ...........248/27.1+
  MOVABLE OR REMOVABLE CLOSURES .....49
  PARTITIONS &,FLEXIBLE & PORTABLE ..160
  PHONOGRAPH BLANKS .................428/64+
  PORTABLE ..........................160/351
  RADIANT HEATING WALL ..............165/49
  RAILWAY PASSENGER CAR
     CONVERTIBLE OPEN TO CLOSED .....105/332+
     END PANEL OPEN CAR .............105/347
  STATIC MOLD  FORM .................249/189
  TRAVELERS .........................16/87.R+
  WALL PANEL, MOLDING CONTINUOUS ....264/46.4+
  WINDSHIELD ........................296/90
     SASH CONVERTIBLE TO SCREEN .....160/128

PANIC BAR LATCHES ................... 292/92+
  WITH LOCK .........................70/92

PANIFICATION
  PROCESSES .........................426/549+

PANORAMIC CAMERAS ................... 354/94+

PANTOGRAPHIC SCRIBERS ............... 33/23.1+
  CURVED SURFACE ....................33/22
  CUTTING MACHINE FOR SHAPING .......409/86+
  MULTIPLANE ........................33/24.1

PANTOLACTONE ........................ 549/319

PANTOTHENIC ACID .................... 562/569

PANTS ............................... 2/227+
  DESIGN ............................D02/712+
  DESIGN, LINGERIE OR UNDERGARMENTS

PANTYHOSE ........................... 2/409+

PAPAVERINE .......................... 546/149


PAPER
  ARTICLE DESIGN ....................D05
  ARTICLE MAKING ....................493
     COMPUTER CONTROLLED, MONITORED .364/471
  BAG MAKING ........................493/186+
  BAG OPENING .......................493/309+
  BAGS ..............................383
  BARRELS ...........................229/67
  BINDER DEVICE RELEASABLY402
     ENGAGING APERTURE OR 402
     NOTCH OF SHEET .................402
  BLUEPRINT .........................430/540
  BOBBINS AND SPOOLS ................242/118+
  BOX ...............................229/100+
     GIFT WRAPPED ...................229/923*
  BOX MAKING ........................493/52+
  CARBON ............................428/488.1+
     COMPOSITIONS ...................106/20.R+
     PAPER,DESIGN ...................D19/1+
  CARTRIDGE SHELLS ..................86/11+
  CLIP OR CLAMP FASTENERS ...........D19/65
  CLIPS .............................24/455+
  COATING ...........................427/411+
     STRIPPING OR EDGING ............427/284+
  COLLARS ...........................2/136
  COMBINED INTO BOOK ................D19/26+
  CUTTER ............................D18/34
  CUTTER, MACHINE-TYPE ..............D15/127
  DISC CLOSURE MAKING ...............493/962*
  DISINFECTING OR STERILIZING .......422/243+
  DRIERS ............................34/148+
     PROCESSES ......................34/23+
  DYEING ............................8
  ELECTROPRINTING ...................205/52
  ENVELOPE MAKING ...................493/186+
  ENVELOPES .........................229/68.R+
  FASTENERS .........................24/67.R+
     MAKING .........................29/13
     PENETRATING-TYPE ...............24/901*
  FESTOON MAKING ....................493/957*
  FLYPAPER HOLDER ...................43/115
  FLYPAPER PACKAGE ..................206/447
  FOLDING OR PLAITING ...............493/68+
     HEAT SEAL ......................493/394+
     SCRAPS .........................10/914*
     TAG APPLYING ...................493/375+
     TUBE MAKING ....................493/269+
  GARLAND MAKING ....................493/958*
  HANGING ...........................156/574
     DESIGN .........................D05
  INTERLOCKED SHEETS ................493/390
  LINED METAL RECEPTACLE ............220/460+
  MAKING & FIBER LIBERATION .........162
     BELTS FOR EXTENDED NIP PRESS ...162/901*
     PAPER FORMING MEMBER ...........162/903*
     PAPER PRESSFELTS ...............162/900*
     WITH SPECIFIED SEAM STRUCTURE ..162/904*
     WOVEN FABRIC FOR DRIER SECTION .162/902*
  MATCHMAKING .......................144/51
  MEDICATED .........................424/414+
  MOISTENER .........................134/122.R+
  MONEY SORTING .....................209/534
  OPENING REINFORCEMENTS ............402/79
  OTHER THAN IN BOOK ................D19/33
  PACKAGE OR ARTICLE CARRIER ........224/906*
  PARCHMENTIZED OR LINEN FINISH .....8/119
  PHOTOGRAPHIC ......................430/270+
  PHOTOGRAPHIC PAPER PACKAGES .......206/455
  PHOTOPRINTING .....................430/270+
  PUNCH .............................D19/72
  PUNCHING ..........................83
  ROLL TYPE DISPENSER PACKAGES ......206/389+
     WITH SEVERING EDGE .............225/39+
  SELF TONING .......................430/559
  SHEET DISPENSING PACKAGES .........206/449+
     WITH TEARING EDGE ..............225/27+
  SHEET MANIPULATING DEVICES
     FLIPPER, INSERTER, LIFTER, .....402/80.R
     REMOVER, TRANSFER FORK .........402/80.R
     TRANSFER POST ..................402/47
  SHEET STOCK .......................428
  SHELF PAPER .......................D05
  SHIFTING PLATE ....................29/270
  STATIONERY ........................D19
  STRAND TWISTING OR TWINING ........57/31+
  STRIPPING PHOTOGRAPHIC ............430/259+
  TABLET ............................D19/26
  TEARING STRAIGHT EDGE .............225/91+
     GAUGE ..........................225/91+
  TEST PAPERS .......................435/805*
  TESTING
     BURSTING OR RUPTURE ............73/838+
     CARBON PAPER ...................73/12.3
     FLEXURE ........................73/849+
     PULP FREENESS ..................73/53.3+
     SHEET MATERIAL .................73/159
  TOWEL DISPENSING CABINETS
     SHEET TYPE .....................312/50+
     STRIP TYPE .....................312/34.8+
     WITH STRIP- TEARING EDGE .......225
  TOWELS ............................162/100+
  TWINE AND STRANDS .................57/260+
  TWISTING AND TWINING APPARATUS ....57/31+
     METHODS ........................57/31+
     TYPEWRITER FEEDING .............40/578+
  WEB WINDING MACHINES AND REELS ....242/55+
     DESIGN .........................D19/96+
     WEIGHTS ........................16/1.R+
  WORKING AND FEEDING
     ARTICLE MANUFACTURING FROM      493
       SHEET OR WEB .................493
     ASSOCIATING OR FOLDING SHEETS ..270
     FEEDING OR DELIVERING SHEETS ...271
     SHEET CUTTING AND PUNCHING .....83
  WRAPPERS ..........................229/87.1+
     GIFT WRAP ......................229/87.19
  WRAPPING ..........................D05
  WRITING ...........................D19/1+

PAPERWEIGHT DESIGN .................. D19/96+

PARABANIC ACID ...................... 548/317.5

PARACHUTES .......................... 244/142+
  AMUSEMENT DROP DEVICES ............472/49
     ROUNDABOUT .....................472/2
  BALLOON ...........................244/32+
  DROP BOMB .........................102/387
  PYROTECHNIC DEVICE ATTACHED .......102/354
     FLARE ..........................102/337+
     ROCKET .........................102/348
  TOY ...............................446/49+

PARAFFIN
  HYDROCARBON .......................585/16+
     PURIFICATION ...................585/800+
     SYNTHESIS ......................585/700+
  WAX ...............................208/20+
     TREATMENT OR RECOVERY ..........208/24+

PARALDEHYDE (SEE METALDEHYDE)

PARALLEL BARS, GYMNASTIC ............ 482/41+

PARALLEL DISTRIBUTED PROCESSING
 NETWORK SEE NEURAL NETWORKS OR
 ARRAY PROCESSORS


PARALLEL OPERATION OF ELECTRIC MOTORS 318/34+

PARAMETRIC & PARAMETRONS ............ 307/402
  AMPLIFIER, CAPACITOR ..............330/7
  AMPLIFIER, SATURABLE INDUCTIVE     330/8
     REACTOR ........................330/8
  AMPLIFIER, SOLID ELEMENT WAVE      330/5
     GUIDE AS REACTOR MEANS .........330/5
  FREQUENCY CONVERTER ...............307/424

PARAQUINONES ........................ 552/293+

PARASITICIDES ....................... 424
  DETERGENTS CONTAINING .............252/106+
  FERTILIZERS CONTAINING ............504/101+
  PAINTS CONTAINING .................106/15.5+
  WATER PURIFYING AGENTS CONTAINING .252/175

PARASOL SEE UMBRELLA ................ 135/15.1+

PARATHION ........................... 558/193
  COMPOSITION BIO AFFECTING .........514/132

PARAVANE
  TORPEDO AND MINE PROTECTION .......114/240.A
  TOWED .............................114/242+

PARCHMENTIZING ...................... 8/118+
  LAMINATING COMBINED ...............156/76


PAREGORIC
  MEDICINE CONTAINING ...............514/282

PARER (SEE PEELER)
  VEGETABLE AND FRUIT ...............99/588+
     DESIGN .........................D07/693

PARIMUTUEL SYSTEMS .................. 235

PARISON ............................. 428/542.8

PARKING
  GARAGES ...........................414/227+
     ELECTRIC SIGNAL SYSTEMS ........340/932.2
  LAND VEHICLE ......................280/761
  LIGHTS ............................362/61+
  METERS ............................194
     DESIGN .........................D10/42
     DESIGN, CASING .................D10/42
     TIMER ELEMENTS .................368/90+
     TIMER ELEMENTS .................968/809+
     WITH BARRIER ...................194/900*
  MOTOR VEHICLE
     DRIVEN LATERALLY ...............180/199+
     PROGRAMMABLE, STEERABLE WHEELS .180/204
  THEATERS ..........................52/6+

PARLIAMENTARY PROCEDURE, TEACHING ... 434/234

PARLOR ORGANS
  COMBINED WITH PIANOS ..............84/172


PARQUETRY ........................... 52/315
  KEYED BLOCKS ......................52/589
  SECTIONAL LAYER ...................428/44+
     WOOD ...........................428/50
  TILE TYPE .........................52/384
     ADHESIVELY HELD ................52/390
  WOOD GRAIN PATTERN ................52/313

PARRELS ............................. 114/96

PARTICLES ........................... 428/402+
  FUEL ..............................44/500+
  METAL .............................75/255+
  MICRO CAPSULES ....................428/402.2

PARTING COMPOUND .................... 106/38.22+
  STATIC MOLD COATED WITH ...........249/115
  UTILIZATION GLASS MAKING ..........65/24+


PARTITION
  BATHTUB ...........................4/514
  BED ...............................5/513
  BRATTICES .........................454/169+
  BUILDING OR CAR
     FREIGHT CARRIER LOAD BRACE .....410/129+
     MOVABLE TYPE ...................52/243.1+
     SAFETY TRANSACTION AND DISPLAY .109/10
     SLEEPING CAR ...................105/323
     STOCK CAR ......................119/11+
     TRAPPING BANK TYPE .............109/5
  CLEAN ROOMS .......................454/187
  FENCES ............................256
  FLEXIBLE ..........................160
  LUGGAGE ...........................190/109+
  MATTRESS ..........................5/480
  MOVABLE OR REMOVABLE CLOSURES .....49
  PANELS &, FLEXIBLE & PORTABLE .....160
  PORTABLE ..........................160/351
  PURSE .............................150/112
  RACK ..............................211/184
  RECEPTACLE ........................220/529+
     CLERICAL IMPLEMENTS
       WITH DIVIDERS ................206/371
  RECEPTACLE FILE ...................220/529+

PARTY FAVOR ......................... D11/131

PARTY LINE .......................... 379/167+
  CALL SYSTEM .......................379/179+
     REVERTIVE ......................379/179

PASS OR IDENTIFICATION CARD CASE .... 40/642

PASSE-PARTOUT PICTURE FRAME ......... 40/152


PASSENGER
  AERONAUTICS
     ACCOMMODATIONS .................244/118.5
     LOADING OR DISCHARGING .........244/137.2
     SAFETY LOWERING COMPARTMENT ....244/140+
  RAILWAY
     CAR ............................105/329.1+
     CAR FRAMING AND STRUCTURE ......105/397+
     JUMPER AMUSEMENT PARK ..........104/82
     STATION SIGNALS ................246/209
     TERMINALS AND STATIONS .........104/28
     TRANSFER MOVING TRAIN ..........104/20+
  RECORDER ..........................346
     SEAT DEPRESSION ................346/40

PASSIVATE ........................... 148/253+

PASTA ............................... D01/126

PASTE ............................... 429/209
  MIXTURES AND PASTED PLATES         429/209+
     FOR STORAGE BATTERIES ..........429/209+
  SUPPORTING GRIDS FOR STORAGE       429/233+
     BATTERIES ......................429/233+
  TUBE
     COLLAPSIBLE WALL ...............222/92+
     DISPENSER-HOLDERS ..............248/108
     SUPPORTS FOR ...................248/108+

PASTEBOARD .......................... D19/1+

PASTERY
  BRUSHES ...........................D04
  INEDIBLE DECORATION ...............D11/184


PASTEURIZING ........................ 426/521+
  APPARATUS .........................99/467
     FILLED RECEPTACLE TYPE .........99/359+
     HEATING AND COOLING ............165/66
  ELECTROLYTIC APPARATUS ............204/194+
  FERMENTATION COMBINED .............435

PASTING
  COATING MACHINES ..................118
  COLLAR CUFF AND BOSOM MAKING ......223/3
  ENVELOPE MAKING ...................493/220+
  PAPER HANGING AND LABEL PASTING ...156

PASTRY AND CONFECTION MAKING ........ 426
  BRUSH .............................D04
  CAKE AND PASTRY MAKING ............426
  COATING APPARATUS .................118/13+
  CONFECTION MAKING .................426/660+
  PACKAGING FOR PASTERY WEDGE .......206/551

PATCH AND PATCHING (SEE REPAIRING)
  BULLET ............................86/42
  MECHANICAL REPAIRING ..............29/402.1+
  PIPE REPAIRING ....................138/98+
  SHIRT .............................2/122
  TIRE ..............................152/367+
     VALVE STEM .....................152/430
  TOOL FOR TIRE REPAIRING ...........81/15.5+
  WIRE SCREEN .......................245/2

PATENT LEATHER ...................... 428/473
  PLURAL COATING ....................427/412
  SHOE UPPER ........................36/45


PATIENT CARRIERS
  AMBULANCES ........................296/19
     WHEELED STRETCHERS .............296/20
  BODY SUPPORTED ....................224/158+
  INVALID LIFT AND TRANSFER .........5/81.1+
     FIELD STRETCHER ................5/626+
  TURNERS ...........................5/607

PATIENT MONITORING COMPUTERIZED ..... 364/413.2+

PATTERN ............................. 33/12+
  BRASSIERE .........................450/92
  CORSET OR GIRDLE ..................450/156
  FLUID FLOW WITHIN NUCLEAR REACTOR .376/373
  FOOTWEAR ..........................33/5
  GLOVES ............................2/169
  METAL FOUNDING ....................164/235+
  METAL ROLLING .....................72
  PLATES FOR METAL FOUNDING .........164/241+
  SPRINKLER .........................239/97+
  TEXTILE WARP ......................28/184


PATTERN CONTROL (SEE COPYING;
 FACSIMILE, TEMPLET)
  BRAIDING MACHINE ..................87/14+
  CALCULATOR ........................235/419+
  ELECTRIC LAMP SYSTEM
     CURRENT OR VOLTAGE .............315/292
     PLURAL LOAD SYSTEMS ............315/316
  ELECTRIC SWITCH ...................20/46
  EMBROIDERING MACHINE ..............112/84+
  EXPANSIBLE CHAMBER MOTOR ..........91/37
  FACSIMILE SIGNAL GENERATED BY      358/478
     STYLUS .........................358/478+
     SYNCHRONIZATION ................358/424
  KNITTING MACHINE ..................66/231+
  LOOM ..............................139
  METALWORKING MACHINE
     CAN MAKING .....................413/27+
     GEAR MAKING ....................409/1+
     MILLING ........................409/79+
     PATTERNS .......................409/125+
     PLANING ........................409/289+
     PUNCH SELECTOR .................234/59+
     ROLLING ........................72/6
     SPINNING .......................72/81
     TRACERS ........................409/126
     TURNING ........................82
     TYPE CASTING ...................199
  MUSICAL INSTRUMENT ................84/600+
  PRINTING MACHINE ..................101/93+
  PUNCH MACHINE
     GANG PUNCH .....................83/76.1+
     PUNCH SELECTOR .................234/59+
  SPECIAL SEWING MACHINE ............112/121.11+
  SPRAY WITH MOVABLE DEFLECTOR ......239/232
  SPRAYER WITH CAM TRACK ............239/236+
  TYPESETTING MACHINE ...............276/13
  TYPEWRITER ........................40/61+
  VALVE ACTUATOR ....................251/3
     WELDING ........................228/7
  WOODWORKING MACHINE
     COOPERING ......................147/27
     CUTTING ........................144/236
     SAWING .........................83/789
     SHAPING ........................144/137+
     TURNING ........................142

PATTY MOLDS, BRIQUETTING MEAT
  DYNAMIC APPARATUS .................425
  METHODS ...........................426/513
  STATIC APPARATUS ..................249


PAVEMENT SEE ROADS .................. 404/17+
  APPARATUS & PROCESSES FOR MAKING ..404/83+
     STATIC MOLD ....................249/2+
  MACHINERY FOR MAKING ..............404/83+
  MATERIALS FOR FORMING
     BITUMINOUS .....................106/273.1+
     CONCRETE .......................106/638+
  PROCESS FOR MAKING ................404/72+
  STREET CROSSING ...................238/9

PAWL (SEE RATCHET) .................. 74/575+
  ACTUATED (SEE DEVICE ACTUATED)
  BOLT OR NUT TO SUBSTRUCTURE LOCK
     LOCKING PAWL, BOLT OR NUT       411/141
       CARRIED ......................411/141
     MOVEABLE PAWL ..................411/145+
       BOLT OR NUT CARRIED ..........411/114+
       USED WITH SIDE LOCK ..........411/128
     RATCHET COMBINED ...............411/89
       PAWL CARRIED BY WASHER .......411/138
       PAWL CARRIED MOVABLY .........411/145+
     RESILIENT PAWL WITH SIDE LOCK ..411/125+
  BOLT TO NUT LOCK AND RATCHET ......411/326
     USED WITH JAM NUT ..............411/227+

PAYING DEVICES ...................... 114/224

PDPN SEE NEURAL NETWORKS

PEACH STONER ........................ 30/113.1+

PEANUT .............................. 426/632+
  BUTTER ............................426/633
  OIL ...............................554/1+

PEARL BUTTON MAKING ................. 79/6+


PEARL ESSENCE ....................... 544/276

PEAT ................................ 44/490+
  CARBONIZING .......................201/25
  EXCAVATOR .........................37/3
  FERTILIZERS FROM ..................71/24
  MINERAL OIL FROM ..................208/400+

PEAVY ............................... 294/17

PEBBLE MILL ......................... 241/170+

PECTIN .............................. 536/2
  FERMENTATIVE PRODUCTION ...........435/275
  JELLIES CONTAINING ................426/577+

PEDAL ............................... 74/560+
  CLAVIER ...........................84/DIG.25
  CLOSURE ACTUATOR ..................49/263+
  CRANK .............................74/594.4+
     BEARING ........................384/429+
     BEARING ANTIFRICTION ...........384/458
     COMBINED .......................74/594.1+
  DESIGN ............................D12/125
  HAND CONTROL COMBINED .............74/481
  LINK AND LEVER SYSTEM CONTROL .....74/512+
  MUSIC KEYBOARD
     AUXILIARY ......................84/426
     CHORD PLAYER ...................84/444
  PIANO .............................84/229+
     AUTOMATIC ......................84/72+
  REED ORGAN ........................84/353
     KEY ACTION .....................84/366
     WIND CONTROL ...................84/357+
  VALVE ACTUATOR ....................251/295


PEDESTAL
  BEARING SUPPORT ...................384/440
     SPRING TYPE ....................248/162.1
     VERTICALLY ADJUSTABLE ..........248/161+
  HORIZONTAL PLANAR SURFACE .........108/88
     SUPPORTING .....................108/150
  RAILWAY SURFACE TRACK .............238/109+
  STAND SUPPORTING ..................248/158+
     EXTENSION ......................108/88

PEDICURE IMPLEMENTS ................. D28/56

PEDOMOTORS (SEE VELOCIPEDES) ........ 235/105
  BOAT ..............................440/21+

PEELER OR PARER(SEE CUTTER; STRIPPER)
  CORER COMBINED ....................99/542+
  CORER SEGMENTER COMBINED ..........99/545
  FOOD ..............................99/588
  FRUIT & VEGETABLE .................99/588+
     DESIGN .........................D07/693
  OSIER .............................144/207
  ROSSING BARK ......................144/208.R
  SLICER COMBINED ...................99/592
     CORER COMBINED .................99/543
  WIRE STRIPPER .....................81/9.4+

PEELING
  BARK ..............................144/208.R
  BARK BRANCH .......................144/207
  FRUIT AND VEGETABLE ...............99/584+

PEEN AND PEENING .................... 72/76
  SHOT BLASTING .....................72/53
  THREAD TEXTURIZER .................28/277

PEEPHOLES ........................... 220/662+
  DOOR MOUNTED ......................49/171
     STOVE ..........................126/200
  DRYING APPARATUS SEE NOTES TO .....34/88
  MEASURING SIGHT GLASS PLATE TYPE ..73/334
  SHIELD MOUNTED ....................109/58.5

PEG (SEE PIN)
  CUTTERS ...........................12/47.1
     IMPLEMENTS .....................12/104.5
  CUTTING AND DRIVING ...............227/93+
  INDICATORS ........................116/325+
  RECEIVERS LASTS ...................12/140
  SOLE FASTENING MEANS ..............36/24
  STRING FASTENER MUSICAL ...........84/304+
  TALLY BOARDS ......................235/90
  TENT ..............................135/118
  VIOLIN ............................84/304+

PEG-BOARD TYPE ARTICLE SUPPORTS ..... 248/216.1+

PELICAN HOOK ........................ 294/82.24+

PELLET (SEE PILLS)
  DEPOSITORS ........................604/57+
  DESIGN ............................D01
     MEDICINAL ......................D24/101+
  HAY PELLET MAKERS IN GENERAL ......10
  HYPODERMIC INJECTORS ..............604/187+
  MACHINE ...........................425/222
  PROCESS FOR FOOD ..................426/512+
  RECEPTACLES FOR POCKET ............206/528+

PELLET .............................. D22/116

PELLICLES FOR OPTICAL INSTRUMENTS ... 359/629+

PELTIER EFFECT (SEE THERMOCOUPLE)

PELTS ............................... 69/22
  CARROTING .........................8/112
  CHEMICAL OR FLUID TREATMENT .......8/94.14
  CLEANING ELEMENTS MADE OF .........15/235
  CUTTING ...........................83
  DYEING ............................8/404+
  FIBER LIBERATION FROM .............19/2+
  SHEARING MACHINES .................26/15.R+
  STRETCHING FRAMES .................38/19+
  TREATMENT .........................69/23+