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:


LEATHER ............................. 69
  ARTIFICIAL ........................428/904*
  BAG, FLEXIBLE .....................383
  BATING ............................8/94.17
     FERMENTIVE .....................435/265
     STRETCHING .....................69/1.5
  BEVELING MACHINES .................69/9+
  BOBBINS OR SPOOLS .................242/118.32
     COP TYPE .......................242/118.7
  COATING OF PROCESSES ..............427/389
     COATED ARTICLE .................428/473
     PLURAL COATING .................427/412
     POST-TREATMENT COMBINED ........427/389
     STRIPING BORDERING OR EDGING ...427/284+
  COMPOSITIONS CONTAINING
     (SEE SYNTHETIC RESIN OR NATURAL
     RUBBER AND CLASS 524-11) .......106/155
  DEGREASING ........................8/139+
  DIGEST, DRYING & GAS OR VAPOR
     CONTACT WITH SOLIDS ............34
  DYEING ............................8/436+
  ELECTROLYTIC TREATING OF ..........204/135
  EMBOSSING .........................69/2
  EMBOSSING .........................101/3.1+
  EXTRACTING OIL FROM ...............554/175+
  FASTENER MADE OF ..................269/906*
  FERTILIZERS FROM ..................71/18
  FLUID TREATMENT, EG TANNING .......8/94.19R+
     MANIPULATIVE ...................8/150.5
  FULLING APPARATUS .................69/33+
  HAMMERING APPARATUS ...............69/1+
  HANDGUN HOLDER MADE OF ............224/911*
  IMPREGNATING COMPOSITIONS FOR      424
     BIOCIDAL .......................424
  MAILBAG ...........................383
  MANUFACTURERS, MACHINES ...........69/1+
     PROCESSES ......................69/21+
     TOOLS ..........................69/20
     WORK STRETCHER OR HOLDER .......69/19+
  POCKETBOOK AND PORTFOLIO DESIGN ...D03/42+
  PRESERVING ........................8/94.1R+
  PUNCHING ..........................83
  ROUGHENERS ........................69/1
  SEWING MACHINES ...................112/28+
  SHOES .............................36
     MAKING .........................12
  SKIVING AND SPLITTING .............69/9+
  SOFTENING .........................69
  STOCK MATERIAL ....................428
     LAMINATE .......................428/473
  STRETCHING FRAMES .................69/19.1+
  STUFFING WITH OIL .................8/94.21+
  TANNING ...........................8/94.19R+
     DRUMS ..........................69/29+
  TREATING COMPOSITIONS .............252/8.57
  WORKERS IRONS, FORGING DIES .......72/343+
  WORKING ...........................69
     COMPOUND TOOLS .................7/102+

LEAVENING COMPOSITIONS .............. 426/561+
  YEAST .............................435/255.1+

LEAVES (SEE LEAF)

LECHER WIRES ........................ 333/220+
  OSCILLATOR COMBINED ...............331/99
  RADIO RECEIVER COMBINED ...........455/130+
  RADIO TRANSMITTER COMBINED ........455/91+
  VACUUM TUBE COMBINED ..............315/39

LECITHIN ............................ 554/80+
  FOODS .............................426/662

LECTERN ............................. D06/419

LEER (SEE LEHR)

LEEWAY NAVIGATION SIDE SLIP ......... 73/180


LEG (SEE SUPPORT)
  ARTIFICIAL ........................623/27+
  FURNITURE
     BATHTUB ........................4/594
     BEDSTEAD .......................5/310+
     FOLDING BEDSTEAD ...............5/179+
     FOLDING CHAIR ..................297/16.1+
     FOLDING STAND LEG ..............248/188.6
     FOLDING STOOL ..................248/166+
     FOLDING TABLE ..................108/115+
     PLURAL FOLDING STAND ...........248/166+
     STAND ..........................248/188.1+
     STAND DETACHABLE ...............248/151
     STOVE ..........................126/304.R+
     TABLE ..........................248/188.1+
  GUARDS AND PROTECTORS .............2/22
  REST ..............................D06/501
     BED ............................5/648+
     CHAIR RECLINING ................297/68+
     VEHICLE OCCUPANT PROPELLED .....280/291
  SURGICAL APPLIANCE
     BANDAGE ........................602/62
     ELECTRIC APPLICATOR ............607/115
     ORTHOPEDIC .....................602/23+

LEGGINGS ............................ 36/2.R
  DESIGN ............................D02/901
  FOOTLESS STOCKING .................2/242
     DESIGN .........................D02/980

LEGUMES ............................. 426/629+

LEHR ................................ 432/120+
  WITH COOLING MEANS ................65/349+

LEMON SQUEEZERS ..................... 10/104+
  COMMINUTOR COMBINED ...............99/495+


LEMONADE ............................ 426/590+
  CONCENTRATE .......................426/599
  EFFERVESCENT ......................426/591
  FERMENTED .........................426/7+

LENO ................................ 139/50+


LENS ................................ 359/642+
  AXIS FINDER .......................356/127
  BLOCKING OR WORKING HOLDING        51/216.LP+
     DEVICES ........................51/216.LP+
  CATADIOPTRIC LENS .................359/727+
     CAMERA STRUCTURE COMBINES ......354
     CATHODE-RAY TUBE COMBINED ......358
  CATHODE RAY TUBE
     STRUCTURE ......................313/317+
     SYSTEM .........................315/14+
  CLEANER
     BRUSHING .......................15
     COMPOSITION ....................252/89.1+
     SCRUBBING ......................134
  COATED ............................359/581
     COATING METHOD .................359/900*
     COATING PER SE .................359/581
  COMBINED WITH ELECTRIC LAMP .......313/110+
  CONTACT FOR EYE ...................351/160.R+
     CONTACT LENS FITTING ...........351/247
  DESIGN ............................D16/134+
  ECHELON LENS ......................359/742+
  ELECTROMAGNETIC WAVE ..............343/909
     DIELECTRIC TYPE ................343/911.R
     WITH ANTENNA ...................343/753+
     ZONED TYPE .....................343/910
  ELECTRON MICROSCOPE ...............250/311
  EYE GLASSES .......................351/159+
  FINDER ............................354/152+
  FOG LAMP ..........................362/317+
  FRESNEL LENS ......................359/742+
  GALILEAN TELESCOPE ................359/744
  GAUGE .............................33/507
  GRINDING MACHINES .................51/284.R
     DESIGN .........................D15/124+
  HOODS .............................359/611+
  INTRAOCULAR .......................623/4+
  LENTICULAR ELEMENTS ...............359/619+
  LIGHT FIXTURE .....................D26/120+
  LUNEBERG TYPE .....................343/911.L
  MAKING ............................65/37+
     GRINDING MACHINES ..............51
     GRINDING PROCESSES .............51/284.R
     SHAPING GLASS SURFACES .........65/61
     UNITING GLASS ..................65/37+
  MARKER GAGE .......................33/200
  MOLD ..............................425/808*
  MOULDING GLASS WHILE HOT ..........65/66+
  MOULDING PLASTIC ..................425
  MOUNTS AND HOLDERS
     EYE GLASSES AND SPECTACLES .....351/41+
     LIGHT SOURCE COMBINED ..........362/455+
  OPTICAL ...........................359/642+
  PANORAMIC LENS ....................359/725
  PERISCOPE .........................359/402+
  PROJECTOR COMBINED
     ANTIGLARE ......................362/351+
     REFLECTOR COMBINED .............362/341+
  REFLECTOR SIGNAL COMBINED .........359/534+
  REFRACTING COMBINED ...............362/326+
  SCHMIDT LENS ......................359/728+
  SHADES ............................359/611+
  SIDEWALK LIGHT TRANSMITTING .......404/22+
  SPECTACLES ........................351/159+
     LENS LINING OR RIMS ............351/154
     SPECTACLE MOUNTINGS ............351/83+
  TELEPHOTO .........................359/745+
  TESTERS ...........................356/124+
  THERMOMETER TUBE COMBINED .........374/194
  TOROIDAL LENS .....................359/711
     FUSE OR PRIMER COMBINES ........102/200+
  VARIABLE FOCAL LENGTH .............359/676+
  ZOOM LENS .........................359/676+

LENTICULAR .......................... 430/946*

LEPIDINE ............................ 546/181

LETOFF (SEE CLUTCH; RATCHET)
  WARP ..............................139/100+

LETTER BOX .......................... 232/17+
  CLOSURES AND CHUTES ...............232/45+
  DESIGN ............................D99/29
  ELECTRIC SWITCH COMBINED ..........20/61.63

LETTER OPENER ....................... D08/102

LETTERING GUIDES, STENCILS .......... D19/40

LETTERS SIGN INTERCHANGEABLE ........ 40/618+


LETTUCE
  PLANTERS ..........................111/914*

LEVEES .............................. 405/107+

LEVELING
  APPAREL ...........................33/7
  CLOCKS ............................248/188.4
  FURNITURE .........................248/188.2+
     CASTER ADJUSTMENT ..............16/19
  ILLUMINATED .......................33/348.2
  LOAD LEVELERS .....................267/64.16+
  METAL STRAIGHTENING ...............72/160+
     WIRE FABRIC ....................140/107+
  RAILWAY TRUCKS ....................105/164
  SELF LEVELING SUPPORTS ............114/191+
  SHAFT .............................33/412
  SOLE MACHINES
     FASTENER INSERTING AND LAYING
       COMBINED .....................12/33.1
     LAYING COMBINED ................12/33+
  STRAIGHTEDGE GEOMETRIC INSTRUMENT .33/451
     WALL GUIDE & PLUMB .............33/404+
  SUSPENDED RAILWAY CAR .............105/149
  TRACK .............................33/287
  TRIPOD OR STAND HEAD ..............248/180
     SELF LEVELING ..................248/182
  VEHICLE BODY LAND TYPE ............280/840+
     BODY RELATIVE TO WHEELS ........180/41
     STEAM BOILER BODY ..............180/39


LEVELS (SEE LEVELING) ............... 33/365+
  ILLUMINATED .......................33/348.2
  LIGHT RAY TYPE ....................33/290
  LIQUID
     ALARM ELECTRIC .................340/618+
     ALARM MECHANICAL ...............116/109+
     DISPENSER MATERIAL LEVEL
       CONTROL ......................222/64+
     GAUGE ..........................73/290.R+
     INDICATOR ......................116/227+
     RESPONSIVE OR MAINTAINING
       SYSTEMS ......................137/386+
  MATERIAL LEVEL DETECTION ..........367/908*
  PLUMB .............................33/392+
  SPIRIT LEVEL ......................D10/69

LEVER ............................... 74/519+
  DESIGN ............................D08/88
  FLEXIBLE MATERIAL TENSIONING ......254/243
     CARPET .........................254/209
  FLOOR JACK ........................254/17
  HANDLE, ASYMMETRIC ................D08/DIG.1
  LINK SYSTEMS ......................74/469+
  LOCKS .............................70/192+
     SWITCH COMBINED ................70/254
     SWITCH COMBINED ................20/61.85+
  NAIL EXTRACTOR ....................254/21+
  PUSHING OR PULLING IMPLEMENT ......254/120+
  RAIL OR TIE SHIFTERS ..............254/44
  SHAFT COUPLING ....................403
  TREADLE ...........................74/561
  VEHICLE SPRING ....................267/228+

LEVIGATION
  WITH ELECTRIC HEATING .............219/7.5

LEVITATION & REDUCED GRAVITY ........ 156/DIG.62
  MAGNETIC RAILWAY ..................104/281+

LEVULINIC ACID ...................... 562/577
  ESTERS ............................560/174


LEWISES ............................. 294/89

LEWISITE ............................ 556/70

LEXAN T M (SEE SYNTHETIC RESIN OR
 NATURAL RUBBER)

LEYDEN JARS ......................... 361/301.1+

LIBERATING
  FERMENTATIVE ......................435/262+
  FIBERS CHEMICAL ...................162/1+
  FIBERS MECHANICAL .................19/1+

LIBRARY SECURITY BY METAL DETECTION . 340/568+

LICENSE PLATE
  DESIGN ............................D20/13+
  FRAMES ............................40/209
  FRAMES ............................40/152+
  HOLDER WITH LIGHT .................D26/31
  JEWEL REFLECTORS ..................359/515+

LICORICE ............................ 426/638


LID (SEE CLOSURE; COVER)
  APPLYING ..........................53/287+
     WITH COMPACTING OF CONTENTS ....10/54+
  BURNER ............................431/144+
  CAR JOURNAL .......................384/189+
  LIFTER ............................294/12+
  LOCK ..............................70/158+
  MANHOLE ...........................404/25+
  PURSE .............................150/119
  RAILWAY TIES TUBULAR TYPE .........238/70+
  RETORT ............................48/124
  STOVE .............................126/211+

LIE DETECTORS
  ELECTROCARDIOGRAPH ................128/697

LIFE BOATS .......................... 114/348+
  DESIGN ............................D12/316+
  LIFE CRAFT HANDLING DEVICES .......114/365+

LIFE PRESERVERS ..................... 441/88+
  AQUATIC LIFESAVING DEVICES ........441/80+
  DESIGN ............................D21/238
  LIFE VESTS ........................441/106+
  RACKS .............................114/190

LIFE RAFTS .......................... 441/35+

LIFE SCIENCES, COMPUTER APPLICATIONS  364/413.1+

LIFE SIGNALS
  COMPUTER CONTROLLED, MONITORED ....364/413.2+
  SIGNALLING FROM BURIAL GRAVE ......27/31
  UNDERTAKING EQUIPMENT .............27/31


LIFESAVING APPARATUS
  AQUATIC ...........................441/80
  ARTIFICIAL RESPIRATION ............128/28+
  BUOYANT DEVICES ...................441/88+
  DROWNING PREVENTION ...............441/80
  FENDERS ...........................293
  FIRE ESCAPES AND BODY CATCHERS ....182/137+
  PARACHUTES ........................244/142+
  SUBMARINE EMERGENCY EQUIPMENT .....114/323+
  SUPPORTING AND LAUNCHING BOATS
     HANDLING EQUIPMENT .............114/365+
  WATERCRAFT LOWERING DRUM ..........254/266+

LIFT MODIFIERS FOR AIRCRAFT ......... 244/198+
  BY FLAP OR SPOILER ................244/213+

LIFT TRUCKS
  ELEVATOR TYPE .....................187/9.R
  HANDLING ASSISTANT ................414/444
  JACK TYPE .........................254/2.R+
  RUNNING GEAR LIFTS ................280/43+

LIFT-SLAB CONSTRUCTION .............. 52/125.1


LIFTS, LIFTERS, LIFTING SEE CONVEYOR;
 DISPENSING; ELEVATOR
  AIRCRAFT ..........................244/34.R
  APPAREL SKIRT .....................2/217
  BEET ..............................171/50+
  BEET ..............................171/103
  BELT SHIFTER ......................474/101+
  BRIDGE LIFTS ......................14/42
  CANAL LOCK RAISING ................405/86
  CAR COUPLING LINK .................213/192+
  CAR JOURNAL BOX ...................254/33+
  CARTRIDGE .........................42/17
  CLUTCH FOR PLOW ...................192/62
  COPYHOLDER PLATEN .................40/349+
  DAMPER MUSICAL INSTRUMENT .........84/217
  DOBBY .............................139/71+
  DOOR ..............................414/684.3
     TRAVERSING HOIST ...............212/166
  DRAWBAR LOCOMOTIVE ................213/5
  DRUM SIFTER .......................209/294+
  FOOT SEWING MACHINE ...............112/237+
  HARVESTER CUTTER ..................56/273
  HARVESTER CUTTER BAR ..............56/283+
  HARVESTER CUTTER BAR FINGER .......56/312+
  HARVESTER CUTTER BAR WITH ROCKING .56/276+
  HARVESTER REELS ...................56/364
  HINGE COMBINED ....................16/233
  HOIST .............................254/266
  HORSE DRAWN RAKE ..................56/397+
  INCLINE PLANE .....................254/88
  INVALID BEDS ......................5/600+
  INVALID FROM BED ..................5/81.1+
  JACQUARD ..........................139/65
  LANTERN GLOBE .....................362/174+
  MAGNETS
     ELECTRIC .......................335/291+
     ELECTRO COMBINED ...............294/65.5
  MULTIPLE ..........................254/89.R+
  PALLETS FORK LIFT .................108/51.1+
  PAWL DRIVING ......................74/149+
  PAWL HOLDING ......................74/155
  PIPE OR ROD .......................254/30+
  PLANER CUTTER .....................409/347
  PLANTER TOOL BAR ..................111/67+
  PLATE AND RECEPTACLE ..............294/27.1+
  PLOWS .............................172
     CLUTCH .........................192/62
     CONTROL ........................172/452+
     PLANT ..........................172/517
     POWER TAKE-OFF .................172/492
     SERVOMOTOR ACTUATOR ............172/491
  POT LID ...........................294/12
  RAIL OR TIE .......................254/121
  SHELF LOADING TYPE ................414/246+
     HORIZONTAL & VERTICAL MOVEMENT .414/260
  SHIPS AND BOATS ...................405/3+
  SPOOL IN WINDER ...................242/46
  THREAD BOARDS .....................57/360
  TRACTION CABLE ....................104/199
  VALVE LIFT REGULATION .............123/345+
  VEHICLE BODY ......................254/45+

LIGATORS ............................ 606/139+

LIGATURES
  PACKAGED ..........................206/63.3
  STRUCTURE .........................606/228+


LIGHT (SEE ELECTRIC; ELECTROOPTICAL;
 ILLUMINATION)
  ARC LAMP ..........................314
  AUTOMOBILE ........................362/61+
  BATTERY LIGHT PLANTS ..............320/2+
  BEAM SPLITTING ....................359/618+
  BICYCLE ...........................362/72
  BUILDING ..........................359/591+
  BULBS .............................313/315+
     DESIGN .........................D26/2
  BUOYS FLOATING BODIES .............441/16+
  BURGLAR ALARMS LIGHT PRODUCING ....116/7
  CHRISTMAS .........................D26/25
  COMMUNICATION .....................359/109+
     MULTIPLEXING ...................359/115+
  CONDUCTOR .........................385+
     BODY TREATMENT TYPE ............607/88+
  CONNECTING ROOS ...................385+
  CONTROLS ..........................315
     TIME CONTROLLED ................315/360
  DECORATIVE ........................362/806*
  DIRECTION INSTRUMENTS .............33/1.DD
  DISPERSION ........................359/615
  DIVIDERS ..........................359/618+
  ELECTRIC LAMP .....................313
  ELECTRIC LAMP SUPPLY SYSTEMS ......315
     DISPLAY MATRIX .................345/82
  FILTER ............................359/885+
     COMPOSITIONS ...................252/582+
     INFRA-RED ......................359/350+
     ULTRA-VIOLET ...................359/350+
  FIXTURE ...........................D26/24+
  FLUORESCENT SCREEN ................250/458.1
  GAME TARGET AND LIGHT RAY
     PROJECTOR ......................273/310+
  GLOBES ............................362/363
  GRATING ...........................359/566+
  ILLUMINATION
     ADVERTIZING SIGNS ..............40/541+
     EXTINGUISHING GAS
  INTENSIFIER .......................250/214.LA+
  INTERFERENCE ......................359/577+
  INVISIBLE LIGHT ...................250/493.1
  LENS OR GLASS FOR FIXTURE .........D26/118
  LIGHT PIPE SIGN ...................40/547
  MEASURING TESTING METERS ..........356/213+
     ELECTROOPTICAL BATTERIES .......136/243+
     INVISIBLE LIGHT AND X RAYS .....250/336.1
     PHOTOCELL CONTROLLED CIRCUIT ...250/200+
     PHOTOCELL ELECTRONIC TYPE ......313/523+
     PHOTOMETERS ....................356/213+
     PHOTOSENSITIVE RESISTORS .......338/15+
     PYROMETERS .....................356/43+
  METERS ............................356/213+
  MODULATION ........................359/237+
  MOUNTINGS .........................362/382+
  MUSICAL INSTRUMENT PRODUCING       84/464.R
     LIGHT EFFECTS ..................84/464.R
  PARACHUTE FLARES ..................102/337+
  PEN DISPLAY CONTROL ...............345/180+
  PERISCOPES WITH ...................359/402+
  PORTS SHIPS .......................114/177+
  POSITION OR CONDITION RESPONSIVE   362/802*
     SWITCH .........................362/802*
  POST COMBINED WITH ................D26/67+
  PROJECTORS SEE PROJECTOR
  RAY TYPE GEOMETRICAL INSTRUMENTS ..33/227+
  REFLECTORS ........................D26/118+
  RESPONSIVE EXPLOSIVE IGNITERS .....102/201
     MARINE MINES ...................102/418
     MINES ..........................102/427
  ROD
     DECORATIVE ELEMENT .............52/301
  SEALS PHOTOGRAPHIC PLATE HOLDER ...354/277
  SENSITIVE (SEE PHOTOELECTRIC CELLS)
     COLOR FILM PHOTOGRAPHIC ........430/541+
     COMPOSITIONS (SEE FLUORESCENT,
       COMPOSITIONS) ................252/501.1
     FILM PHOTOGRAPHIC ..............430/495+
     FILM SENSITIZING ...............430/570+
     FILM SENSITIZING AND DEVELOPING 430/486+
     RESISTANCES ....................252/501.1
  SHADE HOLDERS .....................362/433+
  SHIPS RUNNING LIGHT ...............362/61+
  SIDE OR CROSS WALK LIGHT
     TRANSMITTING ...................404/22+
  SIGNS .............................362/253
  SOCKETS ...........................439/660+
  STAGE ILLUSION ....................472/61
  STAGE LIGHTING SYSTEMS ............315/291+
  STAGE LIGHTING SYSTEMS ............315/313+
  STERILIZING AND PASTEURIZING ULTRA
     VIOLET .........................426/248
  STRAIGHTLINE LIGHT RAY INSTRUMENTS 33/227+
  SUPPORTS ..........................362/382+
  SURGICAL APPLICATIONS .............128
  SWITCH FOR PORTABLE ...............20/60
  TABLE .............................362/97
  TENTS HAVING LIGHT MEANS ..........135/91+
  TOOL HEATER COMBINED ..............126/232
  TORCHES PYROTECHNICS ..............102/336+
  TRACK-TYPE LIGHT ..................D26/61+
  TRANSMISSION MODIFYING COMPOSITIONS252/582
     DISPLAYS COLOR CHANGE ..........252/586
     INFRARED .......................252/587
     MODIFICATION CAUSED BY ENERGY
       OTHER THAN LIGHT .............252/583
     PRODUCES POLARIZED LIGHT .......252/585
     ULTRAVIOLET ....................252/588+
  USED IN REACTION TO PREPARE
     INORGANIC OR ORGANIC MATERIAL ..204/157.15+
  USED IN REACTION TO PREPARE OR TREAT SYNTHETIC RESIN
     OR NATURAL RUBBER ..............522/1+
  VALVES ............................359+
     ILLUMINATING DEVICES HAVING ....362/394+
     MOTION PICTURE APPARATUS USING .352/204+
     OPTICAL TESTING USING ..........356
     PHOTO ELECTRIC DEVICES HAVING ..250/229+
     SOUND RECORDING AND
       REPRODUCING USING ............369/100+
     WITH LIGHT CONDUCTOR ...........250/227.21
  WAVES (SEE SEARCH NOTES TO) .......250
     SIGNALING ......................359/109+
  WITH PHOTOCELL ....................250/227.11
     WITH SPECIFIC ILLUMINATION
       VIEWING GEOMETRY .............250/227.29
     WITH SPECIFIC LIGHT CONDUCTOR
       COMPONENT CONFIGURATION ......250/227.27

LIGHT DETECTORS SEE PHOTOCELL AND PHOTOELECTRIC CELL

LIGHT GUIDE SEE LIGHT CONDUCTOR

LIGHT SENSOR SEE PHOTOCELL AND PHOTOELECTRIC CELL

LIGHTERS SEE IGNITERS
  BARGES ............................114/26+
  CIGAR SEE IGNITERS
     DESIGN .........................D27/141+
  ELECTRIC ..........................219/260+
     ARC OR SPARK ...................361/247+
  FLINT PACKAGING ...................206/528+

LIGHTING DEVICES (SEE IGNITER; ILLUMINATION; LAMP; LIGHT)


LIGHTNING
  ARRESTERS .........................361/117+
     DESIGN .........................D10/105
     GAS TUBE PER SE ................313/567+
     GAS TUBE TYPE ..................361/120
     MANUFACTURE ....................29
     RESISTANCE .....................338/21
     SPACE DISCHARGE TYPE ...........313
     SPACE DISCHARGE TYPE COMBINED
       WITH IMPEDANCE ...............315/58+
     WITH THERMAL CUTOUT ............337/31
  ATMOSPHERIC ELECTRICITY ...........307/149
  COLLECTING WITH CONDENSER .........320/1
  CONDUCTOR .........................D10/105
  GROUNDING .........................174/6+
  RODS ..............................174/2+
  STATIC DISCHARGING ................361/212+

LIGNINS ............................. 530/500+
  COMPOSITIONS CONTAINING 106/123.1
     (SEE SYNTHETIC RESIN OR NATURAL 106/123.1
     RUBBER, COMPOSITIONS) ..........106/123.1
  FIBER LIBERATION ..................162/1+

LIGNITE
  FUEL ..............................44/608
     BRIQUETTE ......................44/592
  MINERAL OIL FROM ..................208/400+

LIMBER .............................. 89/40.7

LIMBS ARTIFICIAL .................... 623/27+


LIME ................................ 423/635
  BURNING PROCESSES .................432/1+
  COMPOSITIONS ......................106/792+
     ADHESIVE FOR CATCHING INSECTS ..424/77
     ALKALI METAL SILICATE106/612+
       CONTAINING ...................106/612+
     SULFUR COMBINED BIOCIDE ........424/696
  KILNS .............................432
  LIGHT .............................431/347

LIMIT STOP .......................... 192/138+
  ELEVATOR CONTROL ..................187/34+
  PHONOGRAPH TURNTABLE ..............369/238
  SWITCH ............................20/47

LIMITER
  GRID CONTROLLED ELECTRONIC TUBE ...328/225
  RADIO AMPLIFIER ...................330/129+

LINCHPIN
  LAND VEHICLE COMBINED .............301/113
  RAILWAY AXLE COMBINED .............295/50

LINCOMYCINS ......................... 536/16.2+


LINE
  BLIND
     FLOW RESTRICTOR COMBINED .......138/40+
     FLUID CONDUIT ..................138/89+
  CARRYING
     AMMUNITION .....................102/504
     FIRE ESCAPE ....................182/10+
     SHELL ..........................102/504
  CHALK .............................33/414
  CLOTHESLINE SUPPORT ...............211/119.1
  DRYING REEL .......................242/104
  ELECTRIC
     BLOCK SIGNAL CURRENT SUPPLY ....246/87+
     POLYSTATION TELEPHONE ..........379/177+
       AUTOMATIC ....................379/182+
       REVERTIVE CALL ...............379/178
     SIGNAL CONTROL TELEPHONE .......379/179+
     TELEGRAPH KEY ..................178/103
     TELEGRAPH LINE CLEARING ........178/69.R
     TELEGRAPHIC PRINTING ...........178/31+
     TELEPHONE PARTY REGISTER .......379/117+
     TESTING LONG LINE TELEPHONE ....379/22+
  FINDER TELEPHONE SWITCH ...........379/293+
  FISHING ...........................43/44.98
     ATTACHED BODIES ................43/43.1
     FLOAT HOLDING ..................43/43.1+
     REEL ...........................242/223+
     ROD GUIDE ......................43/24
  HARNESS ...........................54/36
  LEAD SOUNDING .....................33/715+
  MARKERS ...........................33/32.1+
     MOVING MARKERS .................33/32.3
       WITH MOVING SHEET ............33/32.4
     STATIONARY MARKER ..............33/32.1+
       WITH MOVING SHEET ............33/32.6
       WITH MOVING SUPPORT ..........33/32.5
  MUSICAL EXPRESSION ................84/463
  PRINTING
     BARS ...........................101/396+
     SPACER .........................101/403
     TELEGRAPHY .....................178/31+
  RAT GUARDS FOR SHIPS ..............114/221.R
  SCRIBER ...........................33/18.1+
     PARALLEL .......................33/41.1+
  SEPARATOR TYPE ....................276/35
  SHORTING
     TO PROTECT AMPLIFIER ...........330/51
  SPACER TYPEWRITER .................40/545+
  WIRE DRIVEN PLANTER ...............111/43+


LINEAR
  BRAKE SHOE ARRANGEMENT ............188/240+
  ELECTRIC MOTOR ....................310/12+
     RAILWAY ........................104/290+
  PLANT SUPPORT .....................47/46
  TRAVERSING HOIST ..................212/71+

LINEMANS
  PROTECTIVE DEVICE .................174/5.SB
  SPURS .............................182/221

LINEN
  HOUSEHOLD .........................D06/595+


LINER & LINING (SEE BUSHING)
  ALIGNING
     TYPE CASTING MOLD ..............199/58
       MODIFIED .....................199/57
     TYPEWRITING ....................40/16+
  BALL OR ROD GRINDING MILL .........241/182+
  BEARING ...........................384/276+
     BRASS RAILWAY CAR JOURNAL ......384/191.2
     ROLLER BEARING .................384/569+
  BOAT ..............................114/69
  BOX ...............................493/93
     TEMPERATURE BARRIER ............217/128+
  BRAKE AND CLUTCH
     BRAKE ..........................188/251.R+
     CLUTCH .........................192/107.R
     MAKING BY LAMINATING ...........156
     STOCK MATERIAL .................428
  CASTING MOLD FOR ..................249/87+
  COATING ...........................427/230+
     ELECTROLYTIC ...................205/131
     ROTARY .........................415/170.1+
     TOOTH ..........................433/217.1
  DENTURE ...........................433/168.1
     COMPOSITION ....................523/120
  EARTHENWARE PIPE ..................118/708+
  EARTHENWARE PIPE ..................118/105
  EARTHENWARE PIPE ..................118/125
  EARTHENWARE PIPE ..................118/404
  EARTHENWARE PIPE ..................425/110+
  EARTHENWARE PIPE ..................425/262
  ELECTRIC CONDUIT BUSHING ..........174/83
  ELECTRIC FURNACE ..................373
     ARC ............................373/71
     INDUCTION ......................373/138
     RESISTANCE .....................373/137
  GARMENT ...........................2/272
     COAT ...........................2/97
     GLOVE ..........................2/164
     HAT ............................2/181+
     HAT TRY ON .....................2/63
  GRAVE .............................27/29
  HAT ...............................223/22
  LINED
     PAPER BOX ......................220/403+
     PIPE ...........................138/140+
       FLEXIBLE .....................138/137+
     PIPE COUPLING ..................285/55
     RAILWAY CAR JOURNAL BRASSES ....384/191.2
     SMOKING DEVICES ................131/219+
       BOWL OR STEM .................131/204
     WALLED IN SPACE ................52/267+
       CURVELINEAR ..................52/249
       WITH FLOOR ...................52/265+
  METAL BOTTLE CAP MAKING ...........413/8+
     APPARATUS ......................413/56+
  METAL MOLD ........................118
  METALLURGICAL RECEPTACLE ..........266/280+
  MOLD
     COMPOSITIONS ...................106/38.22+
     EARTHENWARE ....................425/412+
     MACHINE TYPE-BEARING 249/87
       OR FRICTION SURFACE ..........249/87
     ROTARY .........................415/196+
  RAILWAY CAR INTERIOR ..............105/423
  REACTIVE FURNACE LINING ...........75/301
  RECEPTACLE
     CLOSURE, LAMINATED .............156
     LIQUID PROOFED PAPER ...........229/3.1
     METAL CLOSURE MAKING ...........413/8+
       APPARATUS ....................413/56+
     METALLIC .......................220/415+
     WOODEN .........................217/3.R
       TEMPERATURE BARRIER ..........217/131
  SHAFT .............................405/133
  SHELL .............................86/17
  SHIELDING NUCLEAR REACTOR .........976/DIG.18+
  SHOE ..............................36/55
     APPLIER ........................12/39
  STOVE .............................126/144+
  TRUCK BED .........................296/39.1+
  TUNNEL ............................405/150.1+
  UMBRELLA ..........................135/33.2+

LINGERIE ............................ 2
  CLOSED LINGERIE CLASPS ............D11/200+

LINGOES ............................. 139/90

LINGUAL BARS DENTISTRY .............. 433/190

LINGUISTIC COMPUTER APPLICATIONS .... 364/419.1+

LINIMENTS ........................... 424

LINK
  ASSEMBLING
     MACHINES .......................59/25
     SPROCKET CHAIN .................59/7
  BELT TRANSMISSION .................474/240+
     SPROCKET CHAIN .................474/202
  BUTTON ............................24/102.R+
  CHAIN .............................59/84+
     ANTISKID CROSS .................152/243+
     ORNAMENTAL .....................59/82
  EXTENSION FOR CLOSURES ............292/262+
     LOCK TYPE ......................70/93
  FABRICS
     BED BOTTOMS ....................5/188
     FLEXIBLE PANEL STRUCTURE .......160/220
     MATS FLOOR COVERING ............52/663
     MATS SCRAPING ..................15/239+
     PENETRATION RESISTANT ..........2/2.5
     WIRE ...........................245/9
  INSULATORS ........................174/208
  LEVER SYSTEMS .....................74/469+
  MOTIONS IN STEAM ENGINES ..........91/218+
  RAILWAY DRAWBAR COUPLING ..........213/208
     CUSHION CONNECTION .............213/66
  SEPARATION ........................59/11

LINKERS (SEE LINK, ASSEMBLING)
  SAUSAGE ...........................452/46+

LINKING WARP CHAINS ................. 28/177