US1924119A - Typewriting machine - Google Patents

Typewriting machine Download PDF

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Publication number
US1924119A
US1924119A US472607A US47260730A US1924119A US 1924119 A US1924119 A US 1924119A US 472607 A US472607 A US 472607A US 47260730 A US47260730 A US 47260730A US 1924119 A US1924119 A US 1924119A
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United States
Prior art keywords
platen
web
frame
carriage
plies
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Expired - Lifetime
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US472607A
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English (en)
Inventor
Gabrielson Carl
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SCM Corp
Original Assignee
LC Smith and Corona Typewriters Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper

Definitions

  • Fig. 7 iS a View Similar t0 Fg- 6 illllstmling ⁇ 6 provide simple and efficient means for handling a feature 0f OperatiOn 0f Certain Parts helenand typing superposed webs or work plies (and after deSCribed; .f l especially fanfold webs) interleaved with carbon
  • Figs. 8 and 9 are detail views showing one of sheets in such manner that the carbon sheets fihe tWO gangs 0r Sets 0f Carbon-Sheet holding 01' may be repeatedly used in conjunction with sucanehOl bars; 1 65 cessive longitudinal sections of the'multi-ply web Fig. 10 a detail VieW 0f the Carrier 01 Support or superposed work webs and the typing of an for the gangs 0f Carbon-Sheet holding bars;
  • Fig. 12 is a detail View showing the plies 0f other objoots are to provide a Simp1e and einthe initial form or section of a web interleaved cient machine for fanfold manifolding work with the carbons readyfor positioning about the which is compact and may be produced at low Pieten nlepalatnly 'D0 Starting typing thereof, 75
  • a further plies of the first form with the interleaved carobject is to provide carbon and Wol-@Web bons automatically folded up and back upon the 80 handling means for a manifolding typewriting Succeeding form and being introduced downward machine which may be built into existing types andleaIIWald about the platen With he f0lm of machines, or may be attached to such mamOVlng bOt-fJOin ISt alOlind tile Diten aXlS t0- chines by simply removing the existing paper Ward the position shown .1n Flg.
  • the invention also includes an improved for typing and line-Spacing i? the Ordnry i' method of handlingy superposed work plies and .ogfbg'hghlel'me'Spacmg'and typlng 0e- 9o carbon sheets in manifolding work. f
  • f invention will appear' rom e o owing eh y scription of the preferred embodiment o the pggnornn; 111g Oglifaftng com an in raw- .mvmon Illustrated m the ac p y g the carbons to interleave the carbons with the mi th d .-n i second form or typing area and condition the 1.1 e. raw gs'. f th 1 t rfa e of rst typed form or area fortearing off; ,Fg 1 1S a P an new 9, e p akin ca hg th Fig.
  • 16 is a view showingthe second form posi- @n L C Smlth WDW/nung mfc me W e tioned for typing, as in the case of the iirst form 100 4v 1mD T0Ve1 1entS emb0ded therem in Fig. 14, and the rst form being torn 01T; and 1g 2 1S a Side @lei/anon f the lmproved car' Fig.
  • FIG. 17 is a detail View looking from the front nage afd Darts thereon as VleWed from the I eft of .the machine showing, on anv enlarged scale, hand Slde 0f the machine, Dart Of the near 51de the two sets of carbon holding bars with their n 0f the Carriage being breken away, the Darts attached carbon sheets interleaved with the plies 105 5 ⁇ being in the same position as in Figs. 1, 3 and 12. of the fanfolded web.
  • Fig. 3 is a fragmentary vertical transverse sec-
  • the improvements are shown as embodied in tional view on the line 3--3 of Fig. 1; the well known L C Smith typewriting machine,- Figs. 4 ,and 5 are detail views similar to Fig. the main frame of which is -indicated at 1 and 2 illustrating the operation of certain of the supports the usual parts, including the key actuno 5G parts, as more fully hereinafter described, the ated typebars, one of which type bars is indicated at 2.
  • the traveling platen carriage 46 is mounted on the main frame inthe usual manner and is controlled by the usual escapement mechanism.
  • the usual line spacing pawl 3 and its usual actuating mechanism, including the operating handle 4 are mounted on the carriage as usual, as are also the usual paper feed rolls 5y and paper apron 6Jbelow the platen.
  • the improvements will now ⁇ be described.
  • the roller platen '7 is loosely mounted on a platen shaft 8 which is journalled in the side members of the carriage in the usual manner, as shown at 9.
  • Shaft 8 passes through central bearing bores in metal platen end dislrs l0 and l1 the outer faces of which are cored to provide annular outwardly extending flanges i2 and 13 abutted respectively by an end plate or disk 14 and a line space ratchet wheel l5, the disks and said abutting elements being secured to the platen by suitable screws as indicated in Figs. 2 to 7.
  • the platen roller 'Z is cut away longitudinally to provide a relatively wide and deep fiat-bottomed channel 16 extending the full length of the platen roller and also has an axial bore l? through which the platen shaft extends.
  • Means are provided at the left hand end of the platen for positively limiting the extent of rotation of,the platen in both directions, said means arresting the rotation of the platen forwardly or in the usual line-spacing direction at a point at which the channel i6 is at the top of the platen or facing directly upward, and limiting backward or reverse rotation of the platen before the channel comes opposite the printing point a second time.
  • the last mentioned point of arrest is that shown in Fig. 14 so that the platen has an oscillatory movement limited to about one full revolution and, in the particular construction shown, slightly more than one full turn in each direction, the latter capacity enabling utilization of all or substantially all the cylindrical impact surface of the roller from edge to edge of slot 16 as an effective backing or impact surface in typing.
  • the platen is rotatable step by step by the line-spacing mechanism in the usual direction, and is rotatable in both directions by either of the finger wheels 18 xed on the platen shaft in the usual way.
  • the means for limiting the rotation of the platen and the driving connection between the platen shaft and platen. roller will now be described.' ⁇
  • the platen roller is driven from the platen shaft through the medium of a metalfframe which is carried by the platen to rotate therewith and is shiftable radially of the platen toward and from the platen axis by the platen shaft which has a limited rotary movement relatively to the ⁇ platen roller.
  • This metal frame comprises a rigid yoke-like main body part 19 consisting of a dat metal bar or strap overlying the fiat bottom of channel 16 and parallel therewith, the ends of which bar are bent iiatwise at right angles to the slot bottom to form legs extending toward the opposite side of platen shaft coacts with the ends of the slots nearest the free ends of the frame legs to arrest ytation of one of the finger wheels.
  • a pair of rock arms 23 each having a laterally extending pin or stud 2li engaged in a transverse slot 25 in the adjacent leg oi' the radially movable frame 19 carried by the platen roller.
  • the frame legs are slidably guided in diametrically opposite slots 2T and 2d in the flange of each of the end disks of the platen roller as shown, and the platen is automatically locked against accidental rotation in reverse direction, when line-spaced or rotated forwardly into the normal position shown in Figs. l, 2 and 3, by means ci a spring-pressed latch lever 26.
  • Latch lever 26 is pivoted on a stud 29 on the carriage and normally urged counterclockwise to a locking position shown in Figs. 2 and 3 by a spring 30.
  • the rear arm of lever 26 engages a part of the carriage in the locking position to limit upward swinging of the forward arm of the lever with a laterally projecting finger or lug 31 on said forward arm engaged in a locking notch 32 in end plate 14.
  • the forward arm is adapted to be rocked down during the last part of the inward movement of the frame 19 to unlock the platen automatically as shown in Fig.
  • the frame is automatically locked in its retracted or innermost position against the thrust of the frame projecting springs, at the start of the rotation of the platen following the above described initial portion of the reverse rotation of the platen shaft independently of the platen, by a spring urged latch lever 37 of bellcrank form pivoted on a screw tapped into end disk 10 and having a nose adapted to snap into a lateral notch il in one edge of the adjacent frame leg when said leg has been drawn downward to its lowermost position and the platen begins to rotate
  • the platen and shaft will obviously turn in unison upon continued reverse rotation of the finger wheel until arrested by the stop means hereinbefore referred to.
  • the stop means comprises a metal bracket 38 secured to the carriage adjacent the left hand end of the platen and to the rear of the platen and having superposed forwardly extending arms 39 and 40.
  • An arm di loosely pivoted at its forward end on the platen shaft between a collar 12 and end plate ifi of the platen is frictionally urged to rotate with the platen, a spring friction washer 43 on the platen shaft preferably being interposed between said arm 41 and' said end plate, as shown more clearly in Fig. 3.
  • a later- ⁇ ally outwardly extending pin or stud 44 on the rear or free end of arm il is adapted to engage the under side of the upper arm 39 and the upper side of the lower arm 40.
  • a laterally inwardly extending pin or stud on arm 41 is engaged under the rearwardly extending arm of latch lever 37 in the normal unlocked position of the frameand locked position of the platen.
  • latch 37 becomes free to snap into its coactive notch in frame 19, and arm 4l then is driven frictionally away from stop arm 40 to stoparm 39, whereupon arm 41 is arrested while the platen continues to turn.
  • the platen continues turning with the finger wheel' and carries lever 37 bodily with it until the rearwardly extending arm of lever 37 engages behind the pin 45 on the blocked or arrested arm 41, thereby arresting the platen in the position shown in Figs.
  • a spring urged detent for the line-space ratchet Wheel be employed as'common in ordinary typewriting machines.
  • means are provided for automatically throwing off the detent as the platen reaches the limit of its f orward line-spacing movement and holding the detent out until the platen reaches or substantially reaches the limit of its reverse rotation, at which latter point of the platen movement the detent is automatically rendered elective on the ratchet wheel.
  • Arm 48 mounted on thev carriage in rear of the linespace ratchet wheel 15 is an upstanding resilient arm 48 secured by a screw 49 at its lower end to the carriage 46 and having a detent roller 50 journalled thereon intermediate its ends normally urged by said arm between two teeth of the wheel.
  • Arm 48 preferably has an upper portion 5l having a cam portion or forward projection 52 and forwardly extending fingers 53 and 54 above and below cam portion 52.
  • a bell-crank nger lever 55 for normally releasing the detent is pivoted at 56 on the carriage and has a pin 57 coactive with fingers 53 and 54 to limit the extent of swinging of the detent release lever and coactive with cam portion 52 to release the detent and hold it out when the finger portion of the lever is pushed rearwardto carry the pin up in front of the cam and into the notch formed by the ,cam and upper finger.
  • the means for automatically throwing the detent in and out is controlled by the oscillation of side of arm 58.
  • vportion 61 and a low edge portion 61h at its the platen and comprises an arm 58 loosely pivoted at one end on the platen shaft at the inner end of the right' hand shaft bearing and carrying at its other end a pin 59 extending inwardly into an arcuate slot 60 in line space ratchet wheel 15.
  • Pin 59 is coactive alternately with opposite edges of a substantially segmental cam plate 61 loosely pivoted on the platen shaft at the inner
  • Cam plate 61 has a high edge rear edge coactive with the axle 62 of the detent roller to respectively throwand hold out the detent roller and allow the detent roller to coact with the teeth of the ratchet wheel, as shown in Figs. 6 and 7.
  • plate 61 At the upper and lower ends of its rear cam edge, plate 61 has rearwardly extending stop fingers 63 and 64 coactive with roller axle to limit oscillation of the cam plate.
  • the slot 60 and pin 59 afford a lost-motion drive for arm 58 that causes the pin to turn the came plate relatively to the' ratchet to throw out the detent as the platen reaches its normal Fig.
  • the length of the arcuate slot is sufcient to allow for the rotation of the platen through a fraction more than one full turn and may be varied as required by an adjustable plate 65 pivoted on the platen shaft between the cam plate and ratchet Wheel and having an arcuate slot 66 through which' extends the shank of a clamping screw 67 threaded into the ratchet 110
  • the radially shiftable :frame on the platen serves as a support for the carbon sheet carrying or anchoring devices, and also acts as a means -for clamping the web to the platen and driving the web, and as part of the means whereby the 1 leading portion of the web with interleaved carbon sheets is folded upward and backward upon a following portion of the web, as hereinafter more fully explained. Riveted to the transverse portion of the U-shaped frame
  • the anchor bars or ngers 70 for ythe carbon 125 sheets extend inwardly alternately from opposite sides of the frame one above the other and each bar 70 is anchored at one end only.
  • the two sets of oppositely extending bars 70 are secured together in'two gangs each removable as a unit from the frame, and the bars of each set or gang are :.paced apart vertically to afford ample room for tl .e work web plies and carbon sheets and permit them to shift easily relatively to each other when the platen is in normal position with the frame projected radially outward.
  • the bars of each gang have spacing blocks 71 rbetween their outer ends, the bars and blocks being rigidly secured together by a pair of hollow rivets 72 which receive the supporting pins to detachably hold the gang ofv bars to the frame in parallelism with the platen.
  • the radially shiftabie frame also comprises an outer transverse clamping bar '73 normally parallel with and above the transverse portion of the U-shaped frame bar 19 and close to the upper ends oi the pins GB'and 69.
  • Bar 73 is hinged at one end at 74 to'asmall bracket 75 riveted to the outer face oi barl 19 at the right hand end of the platen roller and has a tongue '16 at its other end normally engaged in an aperture '77 in anupstanding spring latch arm 78 riveted at itslower end ⁇ to the left hand leg oi bar 19.
  • a small bracket '79 with two 'upstanding arms engaging opposite side edges oi tongue 76 to assist in holding the bar 73 parallel with the platen axis,v is preferably provided, as shown, said bracket being riveted to bar 19.
  • auxiliary paper feed roller 80 journalled in the upper ends of a pair of supporting arms B5 which are connected at their lower ends with the carriage by spring hinges 81. Roller 80 contacts the platen between the printing line and platen channel 16 when the platen yis in normal locked position as shown in Figs. 1, 2 and l2.
  • a tearing off knife or blade 82 extends 'longitudinally of the platen with its rear shearing edge locatedjust above the folding and feeding roller 80, said blade lying ilatwlse substantially at the level of the transverse portion of frame bar 19 in the outwardly projected position of the radially shiftable frame on the platen.
  • 'I'his blade and a iront horizontal cross-bar 83 of the carriage located forwardly of the blade serves to support the leading portion of the web and the carbons in the straightened out or iiattened condition thereof and guide them during.
  • a rear paper table 86 hinged on the carriage at 87 and resting on supports 88 on the carriage, extends forward from the rear of the main frame Vand slightlyA downward, terminating at its ford ward edge near the rear upper part oi the platen approximately at the level of and slightly to the rear of the transverse horizontal portion of frame lbar 19 of the radially shiftable frame on the platen, to guide the fanfold web from a transversely folded and stacked supply (or other forni oi! supply such as a roll) of the continuous fanfolded web at the rear of the vmain frame oi the machine to the top of the platen.
  • a pair of side edge gauges 89 for the fanfold web are adjustably held to the top of paper table 86 by friction clamp-f ing stud and nut fastenings 90 and a similar pair of side edge gauges 91 for the lweb are similarly held by stud and nut fastenings 92 to the top ofv front cross-bar 83 of the carriage, the gauge i'as tening studs on each gauge bar passing through slots 93 and 94 in the table and cross-bar respecr tively, which extends transversely of the machine.
  • the carbon sheets are slipped on the bars with their free ends extending toward the vfront of ⁇ the machine and their transfer material carrying laces uppermost, and the plies of ⁇ the fanfold or other work web are threaded through the frame 19-73 between the transverse frame bars with the impression receiving faces (or printed faces in the case of a web having a series of successive printed bill forms or other forms) down, the original ply being next to the platen and a carbon. sheet extending from each bar between each two plies to the leading or iront edge oi the web, as shown in Fig. 12.
  • the carbons may be threaded on the gangs oi bars while detached and that bar '73 is swung to one side to initially place the carbons in the machine and facilitate the initial threading, and then the bar 73 is swung into place and locked. It is unnecessary to unlock the bar or handle the carbons again until either the carbone are worn out or the web supply is exhausted, or itis desired to thread a different web into the machine.
  • the leading portion', form, or printing area of the web is ready for positioning around the platen preparatory to typing thereon.
  • the operator grasps either finger wheel 18 and turns it backward or in the reverse direction 4from that in which it turns when the platen is rotated by the usual line spacing mechanism 3 4.
  • the platen remains locked stationary until the radially shiftable frame is drawn into platen channel 16 to form a bight in the work and clamp it to the platen, whereupon the frame is locked in and the platen is unlocked and begins to turn backward as shown in Fig. 4.
  • The-first forml or printing area is then typed and the platen turned in line-space direction step by step by the line space mechanism, and iinaliy by the iinger wheei if necessary aiter complet ing the required typing, Until restored to normal position or the starting position oi'Figs. i., a, t?
  • the finger wheel is again turned backward until the platen is again arrested in Fig.5 position when the rear or bottom edge of the typed form will be at the shearing edge of knife 82 and may be torn off, as indicated diagrammatically in Fig. 16 where the typed form is shown partly torn o and the next form shown positioned around the platen ready for typing.
  • a roller platen journalled on the carriage, a carbon sheet holding bar extending longitudinally of the platen and supported therefrom to turn therewith and for shifting of the bar radially of the platen, line spacing means for rotating the platen, Va finger wheel for rotating the platen in the reverse direction, means for arresting rotation of the platen in both directions at two positions of maximum oscillation in both of 'which the holding bar is above the printing line andin passing from one to the other of which said bar crosses the printing line once only.
  • a typewriting machine as claimed in claim 2 wherein a frame mounted on the platen to shift lradially or the platen supports a plurality of carbon holding bars each connected at one end only to said frame, the bars being spaced radially of the platen and extending inward from their points o connection alternately from opposite ends of the platen.
  • a ltypewriting machine as claimed in claim d wherein means are provided for limiting rotation of the platen in both directions to approximately one full turnfrom a position in which said frame supports the carbon sheet anchoring means and work-clamping means approximately at the top of the platen above the printing line.
  • Aetypewriting machine as claimed in claim d wherein line-spacing means are provided for rotating the'platen in the usual vline-spacing direction, a linger wheel is provided for retracting said frame and rotating the platen in the reverse direction, and means are provided for arresting rotation of the platen in line space direction with the anchoring and clamping means above the printing line and arresting reverse rotation of the platen after said means passes the printing line and before said means again registers with the printing line.
  • line spacing means are provided for the platen and means are provided coactive with the platen above the printing line to fold the carbons and the leading portions of the web plies upward and back upon the followingportions of the plies upon rotation of the platen in the direction opposite to the direction of line-spacing rotation.
  • a platen carriage In a front strike typewriting machine, the combination of a platen carriage, a pressure roller ,contactive with the platen above the printing line, line spacing means for the platen, a iinger wheel for turning the platen in a direction opposite' to the direction of line spacing rotation,
  • the carbon sheet anchoring means comprises two sets of anchor bars, the bars of each set being held to said radially shiftable means at one end only and adjacent one end oi the platen, the bars of one set extending longitudinally of the platen from the left hand end of the platen toward the opposite end of the platen and those of the other set extending longitudinally of the platen from the right hand end of the platen and alternating with the bars of the first set radially of the platen, and wherein said work web engaging and clamping portion of the radially shiftable.
  • said means comprises a hinged bar normally latched at its free end in parallelism with the platen and close to the outermost carbon sheet vanchor bars, said platen having a longitudinal 'channel to and from a clamping position at the mouth of which said hinged bar is shiftable and into and out of which the carbon sheet anchoring bars are shiftable by radial movement oi said radially shiitable means.
  • a typewriting machine as claimed in'claim 9 wherein means are provided for automatically locking the platen against reverse rotation and shitting the radially movable means outwardly when the platen is turned to the limit of its oscillation in line-spacing direction and lor first retracting said radially movable means and then unlocking the platen and reversely ro tating it when the linger wheel is rotated in reverse direction, a paper table is provided on the carriage' extending forwardly from the rear oi the machine to a point close to the top oi the platen at a point located in rear of said radially shiitable means and carbon sheet anchoring means in the locked position of the platen, and a paper supporting cross-bar is provided on the carriage substantially at the level oi the top oi the platen and above the type bars oi the machine.
  • l5. ln a iront strike typewriting machine, the combination of a rotative platen, line spacing means for rotating the platen in one direction, means for mating rotation oi said platen by the line spacing means, means for automatically locking the platen at said limit of rotation, manually operable means for rst clamping between its ends a web passed over the top of the platen in said locked position and then unlocking and. rotating the platen in the reverse direction, and means for folding the leading portion oi said web upward and backward and directing the web foldilrst downward and rearward about the platen upon reverse rotation ol the platen from locked position.
  • a typewriting machine as claimed in claim l5, wherein said manually operable means comprises a finger wheel rotatable about the platen axis, a U-shaped frame member having a transverse portion parallel with the platen axis and end portions perpendicular to the platen axis guided on the platen adjacent to the ends of the platen to move radially oi the platen, a web clamping member hinged to said U-shaped member at one end and latched thereto at its op- 9o posite end parallel with the platen axis and spaced radially outward ⁇ from the transverse portion of the U-shaped member, and wherein said platen has e.
  • a handle operated line spacing pawl for rotating the ratchet wheel in line spacing direction, a' iinger wheel for reversely rotating the platen, a detent coactive with the ratchet wheel to prevent accidental rotation thereof, and means for automatically disengaging and locking the detent lli) from the wheel when the platen is rotated in line spacing direction a predetermined extent and effecting :re-engagement of said detent with said wheel when the platen is reversely rotated a predetermined extent.
  • pawl and ratchet line spacing means ior rotating the platen in one direction, a .finger wheel for reversely rotating the platen, and a yieldable detent normally coactive with the ratchet
  • a platen having a channel therem extending transversely oi the 13@ direction of travel of work plies through the machine means mounted on the platen to entend y both over and under a set of superposed work; plies to be typed, said means being connected with the platen for shifting movement relatively to the platen to carry such plies into and out oi said platen channel at a point intermediate their ends, and means carried by said rst-inentioned means for anchoring carbon sheets in interleaved relation with a set ci Vsuperposed work plies le20 threaded through the ret-mentioned means.
  • a continuous manifolding typewriting-machine comprising typing means, a platen carriage, a platen roller journalled on the carriage for coaction of said typing means with said platen roller, said platen havingla longitudinal channel therein, and a pair of spaced members extending longitudinally of the platen roller for passage therebetween of a set of superposed work web plies, said me bers being connected with the platen to partake bodily of rotary movements of the platen and also shift asa unit relatively to the platen for forcing such superposed work web plies into and out of the platen channel intermediate the ends of the plies, one of said members being providedwith means for anchoring one end .of a carbon pack thereto. 24.
  • a platen carriage In acontinuous manifolding typewriting machine, the combination of a platen carriage, a roller platen journalled on the carriage, a carbon pack anchorage d evice mounted on the platenito rotate therewith, a membermounted on said device to extend longitudinally of the platen and engage over the outermost one of a plurality of work web plies with winch the carbon sheets of a carbon pack anchored to said anchoring means are interleaved.- and means mounted on the carriage to coact with said member to fold the superposed web pliesback upon themselves when the platen isrotated in reverse line spac ing direction.
  • a platen carriage In a front strike continuous manifolding typewritlng machine, the combination of a platen carriage, a roller platen journalled on the carriage and having a longitudinal channel, a device mounted on the platen to rotate therewith, said device being provided with means for holding a plurality of carbon sheet anchor bars parallel with .the platen and being shiftable transversely of the platen to carry sa'id bars intoand out of the platen channel, said device vincluding means for receiving therebetween a plurality of superposed work web plies passed across .the platen and coactive with said channel to clamp and unclamp suchsuperposed plies at opposite limits of the transverse shifting movement of said device relatively to the platen', means for arresting rotation of the platen in both directions around its axis with the platen channel facing upwardly, and means on the carriage at the front of the platen for folding backwardly over said device, upon turning of the platen in reverse', line spacing direction, the leading portion of a set of superposed work plies passed

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Handling Of Sheets (AREA)
  • Labeling Devices (AREA)
US472607A 1931-06-26 1930-08-02 Typewriting machine Expired - Lifetime US1924119A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB18519/31A GB378605A (en) 1931-06-26 1931-06-26 Improvements in or relating to typewriting machines
DES99792D DE592209C (de) 1931-06-26 1931-07-15 Vervielfaeltigungsschreibmaschine zum Beschreiben langer, uebereinanderliegender Papierbahnen
FR720287T 1931-07-20
US92411933A 1933-08-29 1933-08-29

Publications (1)

Publication Number Publication Date
US1924119A true US1924119A (en) 1933-08-29

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ID=10113819

Family Applications (1)

Application Number Title Priority Date Filing Date
US472607A Expired - Lifetime US1924119A (en) 1931-06-26 1930-08-02 Typewriting machine

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US (1) US1924119A (fr)
DE (1) DE592209C (fr)
FR (1) FR720287A (fr)
GB (1) GB378605A (fr)

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Publication number Publication date
GB378605A (en) 1932-08-18
DE592209C (de) 1934-02-03
FR720287A (fr) 1932-02-20

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