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Classification Resources
 
Class   400TYPEWRITING MACHINES
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[List of Pre Grant Publications for class 400 subclass 1][List of Patents for class 400 subclass 1]1 INCLUDING JUSTIFICATION OR QUADDING OF PRINT-LINE
[List of Pre Grant Publications for class 400 subclass 16][List of Patents for class 400 subclass 16]16 FOR TYPING OR FORMING CONTINUOUS OR DISCONTINUOUS LINE (E.G., BY "LINER")
[List of Pre Grant Publications for class 400 subclass 23][List of Patents for class 400 subclass 23]23 FOR TYPING ON FLAT RECORD-MEDIUM OR AGAINST FLAT PLATEN
[List of Pre Grant Publications for class 400 subclass 50][List of Patents for class 400 subclass 50]50 INCLUDING DELAY MEANS FOR PREVENTING MALFUNCTION IN POWERED TYPEWRITER
 [List of Pre Grant Publications for class 400 subclass 53][List of Patents for class 400 subclass 53]53 INCLUDING ADJUSTMENT MEANS TO COMPENSATE FOR WEAR
 [List of Pre Grant Publications for class 400 subclass 54][List of Patents for class 400 subclass 54]54 SAFETY SWITCH OR CONDITION-RESPONSIVE-CUTOFF SWITCH FOR ELECTRICALLY POWERED TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 55][List of Patents for class 400 subclass 55]55 INCLUDING ADJUSTMENT FOR OPTIMUM PRINTING PLANE
[List of Pre Grant Publications for class 400 subclass 61][List of Patents for class 400 subclass 61]61 INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED CONTROL-SYSTEM (E.G., INPUT TYPEWRITER)
[List of Pre Grant Publications for class 400 subclass 70][List of Patents for class 400 subclass 70]70 INCLUDING SELECTION OF TYPE-FACE BY PROGRAMMED-CONTROL-SYSTEM OR BY REMOTE CONTROL
 [List of Pre Grant Publications for class 400 subclass 76][List of Patents for class 400 subclass 76]76 INCLUDING CONTROL OF FORMAT BY PROGRAMMED-CONTROL-SYSTEM
[List of Pre Grant Publications for class 400 subclass 77][List of Patents for class 400 subclass 77]77 TYPEWRITER CONTROLS OTHER INFORMATION RECORDER
 [List of Pre Grant Publications for class 400 subclass 82][List of Patents for class 400 subclass 82]82 INCLUDING PLURAL, INDEPENDENTLY SUPPORTED KEY-BOARDS, PLATENS, OR TYPE-SET ASSEMBLAGES
[List of Pre Grant Publications for class 400 subclass 83][List of Patents for class 400 subclass 83]83 DISPLAYING TYPEWRITER-FORMED REPRESENTATION OF PRINT-LINE
 [List of Pre Grant Publications for class 400 subclass 86][List of Patents for class 400 subclass 86]86 OPERATING BY SOUND
 [List of Pre Grant Publications for class 400 subclass 87][List of Patents for class 400 subclass 87]87 FOR OPERATION BY HANDICAPPED USER
 [List of Pre Grant Publications for class 400 subclass 88][List of Patents for class 400 subclass 88]88 POCKET TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 89][List of Patents for class 400 subclass 89]89 KEY REASSIGNMENT
[List of Pre Grant Publications for class 400 subclass 91][List of Patents for class 400 subclass 91]91 STENOGRAPHIC TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 95][List of Patents for class 400 subclass 95]95 LOGOTYPE TYPEWRITER (E.G., WORD TYPING)
[List of Pre Grant Publications for class 400 subclass 100][List of Patents for class 400 subclass 100]100 PLURAL-KEY-ACTUATED TYPEWRITER (E.G., PERMUTATIVE KEY-BOARD)
[List of Pre Grant Publications for class 400 subclass 103][List of Patents for class 400 subclass 103]103 CODE-PRINTING TYPEWRITER (E.G., FOR PRINTING A PATTERN OR MARK)
[List of Pre Grant Publications for class 400 subclass 109][List of Patents for class 400 subclass 109]109 FOREIGN LANGUAGE OR BRAILLE TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 112][List of Patents for class 400 subclass 112]112 ANNULAR TYPEWRITER (E.G., FOR TYPING AROUND CIRCUMFERENCE OF PLATEN)
[List of Pre Grant Publications for class 400 subclass 116][List of Patents for class 400 subclass 116]116 MUSIC-ROLL OR MUSICAL-NOTATION TYPEWRITER
 [List of Pre Grant Publications for class 400 subclass 118.1][List of Patents for class 400 subclass 118.1]118.1 TYPING BY HEATED DIE
[List of Pre Grant Publications for class 400 subclass 118.2][List of Patents for class 400 subclass 118.2]118.2 TYPING BY OTHER THAN TYPE-FACE OR TYPE-DIE
 [List of Pre Grant Publications for class 400 subclass 118.3][List of Patents for class 400 subclass 118.3]118.3 Subclass 118.3 indent level is 1 Electroconductive transfer
[List of Pre Grant Publications for class 400 subclass 120.01][List of Patents for class 400 subclass 120.01]120.01 Subclass 120.01 indent level is 1 Thermal
[List of Pre Grant Publications for class 400 subclass 124.01][List of Patents for class 400 subclass 124.01]124.01 Subclass 124.01 indent level is 1 Character formation by impact (e.g., wire matrix)
[List of Pre Grant Publications for class 400 subclass 127][List of Patents for class 400 subclass 127]127 TYPING TO PRODUCE EMBOSSED CHARACTER
[List of Pre Grant Publications for class 400 subclass 135][List of Patents for class 400 subclass 135]135 TYPING TO PRODUCE PIERCED CHARACTER
[List of Pre Grant Publications for class 400 subclass 139][List of Patents for class 400 subclass 139]139 INCLUDING TYPE-SET-ASSEMBLAGE MOUNTED ON CARRIER AND RELATIVELY MOVABLE FOR SELECTION AND FOR IMPACT OF TYPE-FACE
[List of Pre Grant Publications for class 400 subclass 140][List of Patents for class 400 subclass 140]140 Subclass 140 indent level is 1 Including type-faces movable relative to type-face-carrier
 [List of Pre Grant Publications for class 400 subclass 146][List of Patents for class 400 subclass 146]146 Subclass 146 indent level is 1 Including endless-band carrier for type-faces
[List of Pre Grant Publications for class 400 subclass 147][List of Patents for class 400 subclass 147]147 Subclass 147 indent level is 1 Type-faces arranged in rectilinear row and selected by reciprocable movement
[List of Pre Grant Publications for class 400 subclass 149][List of Patents for class 400 subclass 149]149 Subclass 149 indent level is 1 Plural type-heads mounted for selective individual type-head-imprinting movement
 [List of Pre Grant Publications for class 400 subclass 152][List of Patents for class 400 subclass 152]152 Subclass 152 indent level is 1 Type drum having multiple type-set-assemblages
[List of Pre Grant Publications for class 400 subclass 153][List of Patents for class 400 subclass 153]153 Subclass 153 indent level is 1 Imprint by movement of record-medium against type-face
[List of Pre Grant Publications for class 400 subclass 160][List of Patents for class 400 subclass 160]160 Subclass 160 indent level is 1 Imprint by pivoting of type-head-carrier and type-head against record-medium
[List of Pre Grant Publications for class 400 subclass 161][List of Patents for class 400 subclass 161]161 Subclass 161 indent level is 2 Type-head-carrier movable on movable carriage
[List of Pre Grant Publications for class 400 subclass 162][List of Patents for class 400 subclass 162]162 Subclass 162 indent level is 2 Type-head movable for selection of type-face
 [List of Pre Grant Publications for class 400 subclass 166][List of Patents for class 400 subclass 166]166 Subclass 166 indent level is 2 Including impact control
 [List of Pre Grant Publications for class 400 subclass 167][List of Patents for class 400 subclass 167]167 Subclass 167 indent level is 2 Including rebound control
 [List of Pre Grant Publications for class 400 subclass 168][List of Patents for class 400 subclass 168]168 Subclass 168 indent level is 2 Articulated-support joint
 [List of Pre Grant Publications for class 400 subclass 169][List of Patents for class 400 subclass 169]169 Subclass 169 indent level is 2 Detenting to fix type-head for imprinting
 [List of Pre Grant Publications for class 400 subclass 170][List of Patents for class 400 subclass 170]170 Subclass 170 indent level is 2 Including movable printing anvil within type-head
 [List of Pre Grant Publications for class 400 subclass 171][List of Patents for class 400 subclass 171]171 Subclass 171 indent level is 1 Plural type-set-assemblages selectively movable from a storage station to a printing station
 [List of Pre Grant Publications for class 400 subclass 172][List of Patents for class 400 subclass 172]172 Subclass 172 indent level is 1 Type-faces mounted on type chips and removable from storage for printing
 [List of Pre Grant Publications for class 400 subclass 173][List of Patents for class 400 subclass 173]173 Subclass 173 indent level is 1 With means for exposing last-typed character
[List of Pre Grant Publications for class 400 subclass 174][List of Patents for class 400 subclass 174]174 Subclass 174 indent level is 1 Type-head, per se
[List of Pre Grant Publications for class 400 subclass 176][List of Patents for class 400 subclass 176]176 HAVING FLUID-PRESSURE POWER DRIVE
 [List of Pre Grant Publications for class 400 subclass 184][List of Patents for class 400 subclass 184]184 HAVING TYPEWRITER-CONTROLLED RECIPROCABLE ELECTROMAGNETIC DRIVE FOR PLURAL FUNCTIONS IN SAME TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 185][List of Patents for class 400 subclass 185]185 HAVING POWER-DRIVEN OPERATOR FOR PLURAL FUNCTIONS
[List of Pre Grant Publications for class 400 subclass 188][List of Patents for class 400 subclass 188]188 FOR TYPING ON REVERSE SURFACE OF RECORD-MEDIUM
[List of Pre Grant Publications for class 400 subclass 191][List of Patents for class 400 subclass 191]191 INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM
 [List of Pre Grant Publications for class 400 subclass 192][List of Patents for class 400 subclass 192]192 Subclass 192 indent level is 1 Moved by continuously rotating power drive intermittently applied
 [List of Pre Grant Publications for class 400 subclass 193][List of Patents for class 400 subclass 193]193 Subclass 193 indent level is 1 Inking device handheld during typing
[List of Pre Grant Publications for class 400 subclass 194][List of Patents for class 400 subclass 194]194 Subclass 194 indent level is 1 Endless ribbon or cartridge therefor
[List of Pre Grant Publications for class 400 subclass 197][List of Patents for class 400 subclass 197]197 Subclass 197 indent level is 1 Renovation of used ribbon
 [List of Pre Grant Publications for class 400 subclass 203][List of Patents for class 400 subclass 203]203 Subclass 203 indent level is 1 Ribbon disposed within platen
[List of Pre Grant Publications for class 400 subclass 204][List of Patents for class 400 subclass 204]204 Subclass 204 indent level is 1 For typing plural copies simultaneously with ribbon(s) (e.g., duplicate typing)
[List of Pre Grant Publications for class 400 subclass 207][List of Patents for class 400 subclass 207]207 Subclass 207 indent level is 1 Package for ribbon facilitating mounting of ribbon on typewriter (e.g., ribbon cartridge)
 [List of Pre Grant Publications for class 400 subclass 209][List of Patents for class 400 subclass 209]209 Subclass 209 indent level is 1 For bottom-strike typewriter
 [List of Pre Grant Publications for class 400 subclass 210][List of Patents for class 400 subclass 210]210 Subclass 210 indent level is 1 For boldface typing
[List of Pre Grant Publications for class 400 subclass 211][List of Patents for class 400 subclass 211]211 Subclass 211 indent level is 1 Including mechanism for shifting ribbon laterally at print-point
[List of Pre Grant Publications for class 400 subclass 218][List of Patents for class 400 subclass 218]218 Subclass 218 indent level is 1 Ribbon-reversing mechanism
[List of Pre Grant Publications for class 400 subclass 223][List of Patents for class 400 subclass 223]223 Subclass 223 indent level is 1 Ribbon-feeding mechanism
[List of Pre Grant Publications for class 400 subclass 237][List of Patents for class 400 subclass 237]237 Subclass 237 indent level is 1 Ribbon, per se
[List of Pre Grant Publications for class 400 subclass 242][List of Patents for class 400 subclass 242]242 Subclass 242 indent level is 1 Ribbon spool or mount therefor
[List of Pre Grant Publications for class 400 subclass 247][List of Patents for class 400 subclass 247]247 Subclass 247 indent level is 1 Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.)
[List of Pre Grant Publications for class 400 subclass 251][List of Patents for class 400 subclass 251]251 CASE-SHIFT MECHANISM
 [List of Pre Grant Publications for class 400 subclass 252][List of Patents for class 400 subclass 252]252 Subclass 252 indent level is 1 Including programmed-control-system
 [List of Pre Grant Publications for class 400 subclass 253][List of Patents for class 400 subclass 253]253 Subclass 253 indent level is 1 Including electronic control or code-bar control
 [List of Pre Grant Publications for class 400 subclass 254][List of Patents for class 400 subclass 254]254 Subclass 254 indent level is 1 Controlled by typewriter-actuated mechanism
 [List of Pre Grant Publications for class 400 subclass 255][List of Patents for class 400 subclass 255]255 Subclass 255 indent level is 1 Including plural case-shift mechanisms (e.g., for simultaneous or selective use)
 [List of Pre Grant Publications for class 400 subclass 256][List of Patents for class 400 subclass 256]256 Subclass 256 indent level is 1 Actuated by toggle-linkage
 [List of Pre Grant Publications for class 400 subclass 257][List of Patents for class 400 subclass 257]257 Subclass 257 indent level is 1 For case-shift by type-head (e.g., spherical type-head) movement
[List of Pre Grant Publications for class 400 subclass 258][List of Patents for class 400 subclass 258]258 Subclass 258 indent level is 1 Power-operated mechanism (e.g., for locking shift key)
[List of Pre Grant Publications for class 400 subclass 261][List of Patents for class 400 subclass 261]261 Subclass 261 indent level is 1 Multiple-shift mechanism (i.e., for type-bar having three or more type faces thereon)
[List of Pre Grant Publications for class 400 subclass 264][List of Patents for class 400 subclass 264]264 Subclass 264 indent level is 1 For shifting platen
[List of Pre Grant Publications for class 400 subclass 268][List of Patents for class 400 subclass 268]268 Subclass 268 indent level is 1 For shifting type-face or type-bar
 [List of Pre Grant Publications for class 400 subclass 271][List of Patents for class 400 subclass 271]271 Subclass 271 indent level is 1 By choosing from one of a plurality of type-bars operated by a single key
[List of Pre Grant Publications for class 400 subclass 272][List of Patents for class 400 subclass 272]272 Subclass 272 indent level is 1 Including key attachment for case-shift
[List of Pre Grant Publications for class 400 subclass 274][List of Patents for class 400 subclass 274]274 Subclass 274 indent level is 1 For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.)
[List of Pre Grant Publications for class 400 subclass 277][List of Patents for class 400 subclass 277]277 Subclass 277 indent level is 1 Including limit stop (e.g., block, chain, etc.)
[List of Pre Grant Publications for class 400 subclass 279][List of Patents for class 400 subclass 279]279 CONTROL OF PRINT POSITION ALONG PRINT-LINE BY SIGNAL GENERATED BY PROGRAMMED-CONTROL-SYSTEM
[List of Pre Grant Publications for class 400 subclass 283][List of Patents for class 400 subclass 283]283 CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM
[List of Pre Grant Publications for class 400 subclass 284][List of Patents for class 400 subclass 284]284 Subclass 284 indent level is 1 For stopping carriage in tabular position (e.g., column-set positions)
 [List of Pre Grant Publications for class 400 subclass 299][List of Patents for class 400 subclass 299]299 Subclass 299 indent level is 1 With rotatable type wheel for repeat printing in response to carriage movement
[List of Pre Grant Publications for class 400 subclass 300][List of Patents for class 400 subclass 300]300 Subclass 300 indent level is 1 Key-actuated mechanism for nonfeed of carriage (e.g., "silent" key, locking carriage, etc.)
[List of Pre Grant Publications for class 400 subclass 303][List of Patents for class 400 subclass 303]303 Subclass 303 indent level is 1 For varying carriage feed
[List of Pre Grant Publications for class 400 subclass 308][List of Patents for class 400 subclass 308]308 Subclass 308 indent level is 1 Carriage backspace mechanism
[List of Pre Grant Publications for class 400 subclass 313][List of Patents for class 400 subclass 313]313 Subclass 313 indent level is 1 Carriage-return mechanism
[List of Pre Grant Publications for class 400 subclass 319][List of Patents for class 400 subclass 319]319 Subclass 319 indent level is 1 Carriage-feed mechanism (e.g., escapement, etc.)
[List of Pre Grant Publications for class 400 subclass 320][List of Patents for class 400 subclass 320]320 Subclass 320 indent level is 2 For carriage on which a type-head-carrier is mounted
 [List of Pre Grant Publications for class 400 subclass 321][List of Patents for class 400 subclass 321]321 Subclass 321 indent level is 2 With repeat spacing
 [List of Pre Grant Publications for class 400 subclass 322][List of Patents for class 400 subclass 322]322 Subclass 322 indent level is 2 By electric or magnetic power
[List of Pre Grant Publications for class 400 subclass 323][List of Patents for class 400 subclass 323]323 Subclass 323 indent level is 2 Carriage-feed in two directions (e.g., continuous typing in both directions)
 [List of Pre Grant Publications for class 400 subclass 324][List of Patents for class 400 subclass 324]324 Subclass 324 indent level is 2 Word-space concurrent with typing of last character of word
 [List of Pre Grant Publications for class 400 subclass 325][List of Patents for class 400 subclass 325]325 Subclass 325 indent level is 2 By space-bar mechanism (e.g., separate connection to escapement) or paragraph-indentation key
 [List of Pre Grant Publications for class 400 subclass 326][List of Patents for class 400 subclass 326]326 Subclass 326 indent level is 2 With compensator for tilt of typewriter
 [List of Pre Grant Publications for class 400 subclass 327][List of Patents for class 400 subclass 327]327 Subclass 327 indent level is 2 For diagonal print-line
[List of Pre Grant Publications for class 400 subclass 328][List of Patents for class 400 subclass 328]328 Subclass 328 indent level is 2 By force-feed or screw mechanism (e.g., direct drive, screw-biasing carriage, etc.)
[List of Pre Grant Publications for class 400 subclass 329][List of Patents for class 400 subclass 329]329 Subclass 329 indent level is 2 Carriage escapement controlled by pawl
[List of Pre Grant Publications for class 400 subclass 333][List of Patents for class 400 subclass 333]333 Subclass 333 indent level is 2 Universal-bar or actuator therefor
[List of Pre Grant Publications for class 400 subclass 334][List of Patents for class 400 subclass 334]334 Subclass 334 indent level is 2 Carriage-feed-release mechanism
 [List of Pre Grant Publications for class 400 subclass 335][List of Patents for class 400 subclass 335]335 Subclass 335 indent level is 2 With particular connection to carriage (e.g., gear train, pulley and strap, etc.)
[List of Pre Grant Publications for class 400 subclass 336][List of Patents for class 400 subclass 336]336 Subclass 336 indent level is 2 Spring-biasing carriage for feed
[List of Pre Grant Publications for class 400 subclass 337][List of Patents for class 400 subclass 337]337 Subclass 337 indent level is 1 Carriage-retarder mechanism
[List of Pre Grant Publications for class 400 subclass 342][List of Patents for class 400 subclass 342]342 Subclass 342 indent level is 1 Margin-regulator (e.g., adjustable margin-stop) mechanism
[List of Pre Grant Publications for class 400 subclass 352][List of Patents for class 400 subclass 352]352 Subclass 352 indent level is 1 Carriage, per se, or guideway therefor
[List of Pre Grant Publications for class 400 subclass 355][List of Patents for class 400 subclass 355]355 Subclass 355 indent level is 1 Means for repositioning carriage or platen thereon
[List of Pre Grant Publications for class 400 subclass 359][List of Patents for class 400 subclass 359]359 HAVING TYPEWRITER-CONTROLLED RECIPROCABLE ELECTROMAGNETIC DRIVE FOR TYPE BAR ACTUATION IN SAME TYPEWRITER
[List of Pre Grant Publications for class 400 subclass 365][List of Patents for class 400 subclass 365]365 HAVING ROTATED POWER DRIVE INTERMITTENTLY APPLIED FOR TYPE-BAR ACTUATION
[List of Pre Grant Publications for class 400 subclass 383][List of Patents for class 400 subclass 383]383 TYPE-BAR-ACTION MECHANISM OR TYPE-FACE ON TYPE-BAR OR TYPE-FACE INKER
 [List of Pre Grant Publications for class 400 subclass 384][List of Patents for class 400 subclass 384]384 Subclass 384 indent level is 1 Spring drive for type-bar action
[List of Pre Grant Publications for class 400 subclass 385][List of Patents for class 400 subclass 385]385 Subclass 385 indent level is 1 With added-motion mechanism for type-bar near print-point
[List of Pre Grant Publications for class 400 subclass 390][List of Patents for class 400 subclass 390]390 Subclass 390 indent level is 1 With end-thrust mechanism for type-bar
[List of Pre Grant Publications for class 400 subclass 394][List of Patents for class 400 subclass 394]394 Subclass 394 indent level is 1 With type-bar pivot traveling during typing movement of type-bar
 [List of Pre Grant Publications for class 400 subclass 397][List of Patents for class 400 subclass 397]397 Subclass 397 indent level is 1 With disconnection of type-bar action during movement thereof
[List of Pre Grant Publications for class 400 subclass 398][List of Patents for class 400 subclass 398]398 Subclass 398 indent level is 1 With accelerated (e.g., motion amplifying)type-bar action
[List of Pre Grant Publications for class 400 subclass 408][List of Patents for class 400 subclass 408]408 Subclass 408 indent level is 1 For bottom-strike typewriter
[List of Pre Grant Publications for class 400 subclass 415][List of Patents for class 400 subclass 415]415 Subclass 415 indent level is 1 For top-strike typewriter
[List of Pre Grant Publications for class 400 subclass 422][List of Patents for class 400 subclass 422]422 Subclass 422 indent level is 1 Type-bar action
 [List of Pre Grant Publications for class 400 subclass 435][List of Patents for class 400 subclass 435]435 Subclass 435 indent level is 1 Type-bar rebound preventer (e.g., via latch, brake, linkage, etc.)
[List of Pre Grant Publications for class 400 subclass 436][List of Patents for class 400 subclass 436]436 Subclass 436 indent level is 1 Type-bar return spring connected to type-bar-action linkage
[List of Pre Grant Publications for class 400 subclass 441][List of Patents for class 400 subclass 441]441 Subclass 441 indent level is 1 Type-bar pivot support
[List of Pre Grant Publications for class 400 subclass 452][List of Patents for class 400 subclass 452]452 Subclass 452 indent level is 1 Type-bar structure
[List of Pre Grant Publications for class 400 subclass 454][List of Patents for class 400 subclass 454]454 Subclass 454 indent level is 1 Type-bar rest or rest support
[List of Pre Grant Publications for class 400 subclass 456][List of Patents for class 400 subclass 456]456 Subclass 456 indent level is 1 Type-bar or type-member guide structure
[List of Pre Grant Publications for class 400 subclass 462][List of Patents for class 400 subclass 462]462 Subclass 462 indent level is 1 Type-member structure
[List of Pre Grant Publications for class 400 subclass 467][List of Patents for class 400 subclass 467]467 Subclass 467 indent level is 1 Dust guard for type-bar action mechanism
 [List of Pre Grant Publications for class 400 subclass 469][List of Patents for class 400 subclass 469]469 Subclass 469 indent level is 1 Attachment to type-bar for imprinting extra character
[List of Pre Grant Publications for class 400 subclass 470][List of Patents for class 400 subclass 470]470 Subclass 470 indent level is 1 Ink-impregnated type-face or inker for type-face
[List of Pre Grant Publications for class 400 subclass 472][List of Patents for class 400 subclass 472]472 KEY-BOARD OR KEY LEVER-ACTUATING MECHANISM
[List of Pre Grant Publications for class 400 subclass 473][List of Patents for class 400 subclass 473]473 Subclass 473 indent level is 1 Including mechanism (e.g., auxiliary key-board) for activating keys
[List of Pre Grant Publications for class 400 subclass 477][List of Patents for class 400 subclass 477]477 Subclass 477 indent level is 1 Including means generating a signal for type selecting or other typing function
[List of Pre Grant Publications for class 400 subclass 480][List of Patents for class 400 subclass 480]480 Subclass 480 indent level is 1 Including control of key action (e.g., buffer, etc.)
 [List of Pre Grant Publications for class 400 subclass 482][List of Patents for class 400 subclass 482]482 Subclass 482 indent level is 1 For stenographic typewriter
 [List of Pre Grant Publications for class 400 subclass 483][List of Patents for class 400 subclass 483]483 Subclass 483 indent level is 1 For Braille typewriter
 [List of Pre Grant Publications for class 400 subclass 484][List of Patents for class 400 subclass 484]484 Subclass 484 indent level is 1 For foreign-language typewriter
 [List of Pre Grant Publications for class 400 subclass 485][List of Patents for class 400 subclass 485]485 Subclass 485 indent level is 1 Key-board having multiple-character, multiple-movement keys
[List of Pre Grant Publications for class 400 subclass 486][List of Patents for class 400 subclass 486]486 Subclass 486 indent level is 1 Key-board arranged according to character location
 [List of Pre Grant Publications for class 400 subclass 488][List of Patents for class 400 subclass 488]488 Subclass 488 indent level is 1 Key-board including row of keys having different heights
 [List of Pre Grant Publications for class 400 subclass 489][List of Patents for class 400 subclass 489]489 Subclass 489 indent level is 1 Key-board including keys grouped to facilitate positioning of typist's fingers
[List of Pre Grant Publications for class 400 subclass 490][List of Patents for class 400 subclass 490]490 Subclass 490 indent level is 1 Key-cap or key-stem structure
 [List of Pre Grant Publications for class 400 subclass 496][List of Patents for class 400 subclass 496]496 Subclass 496 indent level is 1 Key lever or space-bar mounting structure (e.g., dust guard, buffer, pivot, etc.)
[List of Pre Grant Publications for class 400 subclass 497][List of Patents for class 400 subclass 497]497 WITH CONTROL OF "CARBON PAPER" FOR TYPING PLURAL SIMULTANEOUS COPIES BY SINGLE IMPRESSION (E.G., ON "MANIFOLD SET")
 [List of Pre Grant Publications for class 400 subclass 498][List of Patents for class 400 subclass 498]498 Subclass 498 indent level is 1 Including prevention of full imprint on "carbon copy" record-medium
 [List of Pre Grant Publications for class 400 subclass 499][List of Patents for class 400 subclass 499]499 Subclass 499 indent level is 1 On record-medium wound around platen together with carbon paper
[List of Pre Grant Publications for class 400 subclass 500][List of Patents for class 400 subclass 500]500 Subclass 500 indent level is 1 With means for causing slack in web of manifold set
[List of Pre Grant Publications for class 400 subclass 503][List of Patents for class 400 subclass 503]503 Subclass 503 indent level is 1 By use of other than rectangular sheet carbon paper (e.g., disc, etc.)
 [List of Pre Grant Publications for class 400 subclass 505][List of Patents for class 400 subclass 505]505 Subclass 505 indent level is 1 By multicolor carbon paper
 [List of Pre Grant Publications for class 400 subclass 506][List of Patents for class 400 subclass 506]506 Subclass 506 indent level is 1 With means to prevent creep (e.g., relative movement) between record-media
 [List of Pre Grant Publications for class 400 subclass 507][List of Patents for class 400 subclass 507]507 Subclass 507 indent level is 1 Including means for creep feed of carbon paper
[List of Pre Grant Publications for class 400 subclass 508][List of Patents for class 400 subclass 508]508 Subclass 508 indent level is 1 Including spool or support for roll of carbon paper
[List of Pre Grant Publications for class 400 subclass 513][List of Patents for class 400 subclass 513]513 Subclass 513 indent level is 1 Including relative movement between carbon paper and record-medium
 [List of Pre Grant Publications for class 400 subclass 520][List of Patents for class 400 subclass 520]520 Subclass 520 indent level is 1 Carbon paper holder (e.g., loading board, etc.)
[List of Pre Grant Publications for class 400 subclass 521][List of Patents for class 400 subclass 521]521 FOR TYPING ON CARD IN CARD HOLDER
[List of Pre Grant Publications for class 400 subclass 545][List of Patents for class 400 subclass 545]545 FOR LINE-SPACING BY INCREMENTAL ROTATION OF PLATEN
[List of Pre Grant Publications for class 400 subclass 546][List of Patents for class 400 subclass 546]546 Subclass 546 indent level is 1 To facilitate condensed billing (i.e., by determining a desired limit or amount of retrograde or advance platen movement)
 [List of Pre Grant Publications for class 400 subclass 549][List of Patents for class 400 subclass 549]549 Subclass 549 indent level is 1 Actuated by key on key-board
 [List of Pre Grant Publications for class 400 subclass 550][List of Patents for class 400 subclass 550]550 Subclass 550 indent level is 1 For multi-incremental rotation (e.g., "platen sweep")
 [List of Pre Grant Publications for class 400 subclass 551][List of Patents for class 400 subclass 551]551 Subclass 551 indent level is 1 For line-spacing in forward or reverse direction
 [List of Pre Grant Publications for class 400 subclass 552][List of Patents for class 400 subclass 552]552 Subclass 552 indent level is 1 With "floating" platen
 [List of Pre Grant Publications for class 400 subclass 553][List of Patents for class 400 subclass 553]553 Subclass 553 indent level is 1 Via line-space / carriage-feed-release actuator
 [List of Pre Grant Publications for class 400 subclass 554][List of Patents for class 400 subclass 554]554 Subclass 554 indent level is 1 For facilitating even wear of platen surface (e.g., by irregular increments, etc.)
[List of Pre Grant Publications for class 400 subclass 555][List of Patents for class 400 subclass 555]555 Subclass 555 indent level is 1 By irregular increments of platen rotation (e.g., for adjustment of platen relative to its actuator, etc.)
 [List of Pre Grant Publications for class 400 subclass 568][List of Patents for class 400 subclass 568]568 Subclass 568 indent level is 1 By electric-power drive
 [List of Pre Grant Publications for class 400 subclass 569][List of Patents for class 400 subclass 569]569 Subclass 569 indent level is 1 By gear train (e.g., including a clutch)
 [List of Pre Grant Publications for class 400 subclass 570][List of Patents for class 400 subclass 570]570 Subclass 570 indent level is 1 By double-cam drive
 [List of Pre Grant Publications for class 400 subclass 571][List of Patents for class 400 subclass 571]571 Subclass 571 indent level is 1 By friction drive (e.g., including regulation of increments)
[List of Pre Grant Publications for class 400 subclass 572][List of Patents for class 400 subclass 572]572 Subclass 572 indent level is 1 By pawl and ratchet wheel drive
 [List of Pre Grant Publications for class 400 subclass 576][List of Patents for class 400 subclass 576]576 Subclass 576 indent level is 1 Via foldable line-space actuator
 [List of Pre Grant Publications for class 400 subclass 577][List of Patents for class 400 subclass 577]577 Subclass 577 indent level is 1 With means to prevent reverse rotation or ensure full increment (e.g., for "backlash" prevention)
[List of Pre Grant Publications for class 400 subclass 578][List of Patents for class 400 subclass 578]578 SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM)
 [List of Pre Grant Publications for class 400 subclass 579][List of Patents for class 400 subclass 579]579 Subclass 579 indent level is 1 Including skew correction responsive to position of sheet or web
[List of Pre Grant Publications for class 400 subclass 580][List of Patents for class 400 subclass 580]580 Subclass 580 indent level is 1 Including forming indicia on record-medium during typing to find next line to be typed
[List of Pre Grant Publications for class 400 subclass 582][List of Patents for class 400 subclass 582]582 Subclass 582 indent level is 1 Including programmed-control-system for record-medium feed (e.g., on auxiliary record)
[List of Pre Grant Publications for class 400 subclass 584][List of Patents for class 400 subclass 584]584 Subclass 584 indent level is 1 Including feed of plural record-media arranged side-by-side (e.g., fed independently of platen)
[List of Pre Grant Publications for class 400 subclass 586][List of Patents for class 400 subclass 586]586 Subclass 586 indent level is 1 Including feed of tally strip record-medium (e.g., plural tally strips)
[List of Pre Grant Publications for class 400 subclass 595][List of Patents for class 400 subclass 595]595 Subclass 595 indent level is 1 Including insertion of sheet from front of platen (e.g., for "condensed billing", via sheet guide, etc.)
[List of Pre Grant Publications for class 400 subclass 605][List of Patents for class 400 subclass 605]605 Subclass 605 indent level is 1 For feeding plural record media concurrently or selectively
[List of Pre Grant Publications for class 400 subclass 611][List of Patents for class 400 subclass 611]611 Subclass 611 indent level is 1 For feeding web record-medium
[List of Pre Grant Publications for class 400 subclass 622][List of Patents for class 400 subclass 622]622 Subclass 622 indent level is 1 With holder for single sheet (e.g., clip, backing sheet, etc.)
[List of Pre Grant Publications for class 400 subclass 624][List of Patents for class 400 subclass 624]624 Subclass 624 indent level is 1 For feeding sheet from stack or pack holder
[List of Pre Grant Publications for class 400 subclass 630][List of Patents for class 400 subclass 630]630 Subclass 630 indent level is 1 Including aligning of sheet edge prior to typing
[List of Pre Grant Publications for class 400 subclass 634][List of Patents for class 400 subclass 634]634 Subclass 634 indent level is 1 Including friction-feed means (e.g., band)
[List of Pre Grant Publications for class 400 subclass 642][List of Patents for class 400 subclass 642]642 Subclass 642 indent level is 1 Including sheet guide (e.g., for sheet insertion, etc.)
[List of Pre Grant Publications for class 400 subclass 648][List of Patents for class 400 subclass 648]648 PLATEN OR PLATEN-MOVING MECHANISM
[List of Pre Grant Publications for class 400 subclass 663][List of Patents for class 400 subclass 663]663 LOCKING OR INTERLOCKING MECHANISM
[List of Pre Grant Publications for class 400 subclass 679][List of Patents for class 400 subclass 679]679 MEANS AUXILIARY TO TYPEWRITING FUNCTION
[List of Pre Grant Publications for class 400 subclass 680][List of Patents for class 400 subclass 680]680 Subclass 680 indent level is 1 Means for collapsing typewriter or support for record-medium or copy
[List of Pre Grant Publications for class 400 subclass 686][List of Patents for class 400 subclass 686]686 Subclass 686 indent level is 1 Buffer (e.g., dashpot, of particular material, etc.) for movable typewriter element
 [List of Pre Grant Publications for class 400 subclass 688][List of Patents for class 400 subclass 688]688 Subclass 688 indent level is 1 Means for increasing typewriter noise
[List of Pre Grant Publications for class 400 subclass 689][List of Patents for class 400 subclass 689]689 Subclass 689 indent level is 1 Means for muffling typewriter noise
[List of Pre Grant Publications for class 400 subclass 691][List of Patents for class 400 subclass 691]691 Subclass 691 indent level is 1 Frame, casing, or support for typewriter
[List of Pre Grant Publications for class 400 subclass 695][List of Patents for class 400 subclass 695]695 Subclass 695 indent level is 1 Means for correcting typing errors (e.g., by abrasive eraser, etc.)
[List of Pre Grant Publications for class 400 subclass 701][List of Patents for class 400 subclass 701]701 Subclass 701 indent level is 1 Means for cleaning, or facilitating cleaning of, type-face
[List of Pre Grant Publications for class 400 subclass 703][List of Patents for class 400 subclass 703]703 Subclass 703 indent level is 1 Indicator means
[List of Pre Grant Publications for class 400 subclass 713][List of Patents for class 400 subclass 713]713 Subclass 713 indent level is 1 Attachment for shielding or screening record-medium or typewriter (e.g., against wind, etc.)
 [List of Pre Grant Publications for class 400 subclass 715][List of Patents for class 400 subclass 715]715 Subclass 715 indent level is 1 Attachment for guiding fingers or hands of typist (e.g., hand rest)
 [List of Pre Grant Publications for class 400 subclass 716][List of Patents for class 400 subclass 716]716 Subclass 716 indent level is 1 Attachment for illuminating or viewing (e.g., prism, etc.)
[List of Pre Grant Publications for class 400 subclass 717][List of Patents for class 400 subclass 717]717 Subclass 717 indent level is 1 Attachment for holding an article (e.g., pencil, eraser, etc.)
 [List of Pre Grant Publications for class 400 subclass 719][List of Patents for class 400 subclass 719]719 MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 400 subclass 900][List of Patents for class 400 subclass 900]900 CHEMICAL-SYMBOL CHARACTER
 [List of Pre Grant Publications for class 400 subclass 901][List of Patents for class 400 subclass 901]901 CONTINUOUSLY ROTATING TYPE-HEAD
 [List of Pre Grant Publications for class 400 subclass 902][List of Patents for class 400 subclass 902]902 STEPPING-MOTOR DRIVE FOR WEB FEED
 [List of Pre Grant Publications for class 400 subclass 903][List of Patents for class 400 subclass 903]903 STEPPING-MOTOR DRIVE FOR CARRIAGE FEED
 [List of Pre Grant Publications for class 400 subclass 904][List of Patents for class 400 subclass 904]904 SUBSCRIPT OR SUPERSCRIPT CHARACTER
 
FOREIGN ART COLLECTIONS
 
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