US1022604A - Multirevolution printing-machine. - Google Patents

Multirevolution printing-machine. Download PDF

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US1022604A
US1022604A US31338406A US1906313384A US1022604A US 1022604 A US1022604 A US 1022604A US 31338406 A US31338406 A US 31338406A US 1906313384 A US1906313384 A US 1906313384A US 1022604 A US1022604 A US 1022604A
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printing
impression
cylinder
machine
form carrying
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US31338406A
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Walter Scott
Isabella Scott
David John Scott
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Walter Scott
Isabella Scott
David John Scott
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/30Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41LAPPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L19/00Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for

Description

W. SCOTT, DEOD. I. & n; J. BOQTT, BXEOUTORS. MULTI'RBVOLUTION PRINTING MACHINE.
APPLICATION FILED APR. 24, 1906.
, Patented Apr. 9, 1912.
2 SHEETS-SHEET 1.
%/Z1 5v ti $51 11475 6110mm I W. SCOTT, DEGD. I. a; n. J. SCOTT, nxnonwons.
MULTIREVOLUTION PRINTING MACHINE.
APPLICATION FILED APR. 24, 1906.
1 023 604, Patented. Apr. 9, 1912.
2 SHEETS-SHEET 2.
1 2X name:
Z: 351 11 flrrwm M V. W
an. I
WALTER SCOTT, 0F PLAINFIELD, NEW JERSEY; ISABELLA SCOTT AND DAVID JOHN SCOTT EXECUTOES OF SAID WALTER SCOTT, DECEASED.
MULTIRiEVOLUTI O N PRINTING-MACHINE.
roaaeoa.
Specification of Letters Patent.
' Patented Apnfi, 1912.
Application filed April 24, 1906. I SerialNo. 313,384. v
Improvements in Multirevolution Printing Machines, of which the following is aspecification.
The present invention' relates generally to printing machines, and has more particularly reference to planographic printing maducing a multirevoluion printing machine 2 composed of an impr; carrying member, and a printing member, interposed between ceive a transfer in chines.
In the prior art a type of planographic machine has been developed in which the printing mechanism consists of an impression member, a form carrying member, and
a printing member interposed between the' two. This printing member, whichis in theform of a cylinder covered with a rubber or other suitable blanket, is adapted to coa'ct with the form carrying member to receive on the said blanket a transfer'in ink of the matter to be printed, and sequentially to print the said transfer on the sheet carried by the impression member.
In printing machines for printing it is highly desirable to have the cylinders or other members constituting the printing mechanism make a number of revolutions to each impression or. each cycle of the inachine.
One of the advantages of this construction resides in the fact that it is possible to deliver the sheet in front of the impression cylinder with the printed side'up, which is especially valuable when a high grade of printing is done' Furthermore with this construction the cylinders can be made much smaller without decreasing the size of the sheet to be printed. r
One object of the invention is to produce a multirevoiution printing machine whose printing mechanism consists of an impression member,
desirable that the form carrying member shall be accessiblewhen the machine is running, so that the pressman can wipe or v dampen ber, and to print the same cycle of lbination of parts,
fully hereinafter out in the claims. sheets, 7
- Fig. 2 is a plan View a form carrying member, and, a printing member interposed between the and indicated by the numeral the form as may be required. It
.is also desirable that the printing and mpression cylinders be accessible for the purpose'o-f cleaning or repairing.
Accordingly a further object of the invention consists in producing a structure where the cylinders are arranged so as to be accessible Other objects will appear as the specification proceeds.
Accordingly the invention resides inprossion member, a form the two, adapted to reink, once to each cycle of theform carrying memthe said transfer during the machine on the sheet carried by the impression member.
the machine, from The invention further consists in the com-' I features of construction, of elements as will more and arrangement be described and pointed In the accompanying drawings, the invention has been embodied in a suitable and preferred form, but changes of construction may of course be made without departing from the spirit of the invention.
In the said drawings: Figure 1 is a side elevation of a machine embodying the illvention, and showing the parts in the posi tion where a sheet is about to be printed.
of Fig. 1. with some of the parts removed. Figs. 3 and 4 are diagrammatic views showing the various positions which the cylinders occupy at difi'erent times. I
Similar characters of reference indicate corresponding parts in the different views.
. 1 indicates a framework of any suitable construction for properly mounting the parts comprising the machine.
2 denotes the impression cylinder provided with the grippers 3 and the throw ofis 4 of the usual construction and operated in the usual way by cams'or pins. (Not shown.) 5 indicates the form carrying cylinder, the form being shown in dotted lines 6. Interposed between these two cylinders is the printing member or-cylinder 7 provided with a rubber blanket 8'secured in any suitable or well known manner as by means of the hooks 9. Each of these cylinders is geared to make two revolutions to each impression. I
Means are provided for separating or tripping and untripping the several members composing the printing mechanism, in, the
present instance taking the form of means for tripping the form carrying member with relation to the printing member, and means for tripping the impression member with relation to the printing member. Preferably both of these tripping means are under the Igontrol of an actuating devicecommon to In a mult-irevolut-ion structure, the-trip ping device will take the form of an automatic tripping mechanism for tripping and untripping the several members composing the printing mechanism'once to eachimpression or once to each cycle of the ma chine. Interrupting means for interrupting the normal operation of the automatic means will further be/ provided so as to maintain the several members tripped. If, as is the case in the present structure, the form carrying and impression members are tripped with relation to the printing member, there will be an interrupting means for each of the two members, and these two interrupting means will be under thecont-rol of a single actuating device which when set in motion will cause both of the said interrupting means to be positioned to interrupt the operation of the automatic means. For reasons which will be more fully hereinafter disclosed, the tripping and untripping of the form carrying and printing members with relation to each other should take place ahead of the tripping and untripping of the impression and printing members with relation to each other. The interrupting means are therefore soarranged and constructed that when set in motion by the actuating device they act sequentially to correspond to the sequential and automatic tripping and untripping of the several members composing the printing mechanism.
The cylinders 2 and 5 are mounted in eccentric bushings 10 and 11 so' as to be ca pable of being tripped and untripped with relation to the cylinder 7. These bushings are connected to the rock-shafts 12 and 13 by means of the arms 14; and 15 and connecting rods 16. Any suitable means may of course be used for rocking these shafts. Preferably there is mounted on the shaft 17 which is geared to make one revolution to each impression, two cams 18 and 19. Engaging with. the grooves of these cams are the pins 20 of the pivoted levers 21 and 22, whose free ends are provided with the pins 23 and 24 entering recesses 24? ofthe slotted ends 25 of the levers 26 and 27, whose other ends are connected to the rock-shafts 12 and 13 bymeans of the arms 28. This eflects the tripping and untripping of the form carrying and impression cylinders with relation to the printing cylinder automatically once to each impression. .It will be understood, however, that thetripping and untripping of the forin carrying member must be effected ahead of the tripping and untripping of the impressionmember since the leading end of the transfer in ink received by the printing cylinder must be at a point of the circumference of the said printing cylinder where it will meet the leading edge of the sheet carried by the impression cylinder, when the said impression cylinder is moved into contact with the printing cylinder. The cam 18 is so timed that, when the leading edge of asheet taken by the impression cylinder arrives at the point X in Fig. 3, it will cause the form carrying member to begin its movement toward the printing member. When the leading edge of the sheet reaches the posit-ion indicated at Y in Fig. 4, the form carrying and printing members will be in contact with each other.
It will be observed that the distance from the leading end of the ink transfer of the printing cylinder indicated at Z to the point of contact between the printing and impression cylinders is substantially the same as the distance between the leading edge of the sheet indicated at Y and the point of contact: between the printing and impressioncylinders; In this way the leading end of the ink transfer and the leading edge of the sheet will arrive at the point of contact between the printing and impression members at the proper moment. The cam 19 is so timed as to bring the impression cylinder into contact with the printing cylinder subsequently to the movement of the form carrying cylinder into contact with the printing cylinder; the parts being so arranged that the said impression cylinder will come into contact with the printing cylinder substantially at the moment the leading edge of the sheet arrives at the point of contact between the two cylinders. When the complete transfer in ink hasbeen sup-- plied to the printing cylinder, the form carrying cylinder will be moved out of contact with the said printing cylinder by the cam'18, and during the second revolution of the impression cylinder the latter will be moved out of contact with the printing cylinder, the said form carrying and impression cylinders being separated from the printing cylinder sequentially or in the same order that they were moved into con.- t-act therewith.
The means for interrupting the operation of the automatic tripping means are preferably constructed as follows: 29 and 30 are two sliding and unison by being rocking cams slidable in V capable of being rocked independently of each other around the said shaft.
These cams are provided with the pins 32 and 33 which are of such a length as to always extend in under the slotted ends of the levers 35 indicate stops the said cams rest.
26 and 27. and against which one end of Mounted on the rotating cams 18 and 19 are the pins 36 and 37 adapted to engage respectively with the cam surfaces 38 and 39 of the rocking cams 29 and 30 when the the said pins.
latter are in the plane of Normally the cams 29 and 30 are held out of the plane of pins 36 and 37 byreason of the tween the collars and 37 are positio so as to make the spring 40 which acts be- 41 and 42. The pins 36 ned one ahead of the other interrupting means, when the latter are properly positioned, effective sequentially to correspond to the timing of the two cams 18 and 19. I
The actuating device may be of any suitable kind operated by the automatic feeding machine, if such as by means of a is used, or by the operator foot treadle 43. This foottreadle is suitably connected to the rockshaft 44 carrying the forked lever 45 embracing a portion of the depressed serves cams to move the two rocking 29 and 30 into the plane of the pins 36 and 37. The rotation of the cams 18 and 19 will then bring the pins thereby tilting the cams ter in turn lift the levers the pins 23 and slot'sof the said 36 and 37 around 29 and 30 which lat- 26 and 27 so that 24 will move idly in the levers 26 and 27, thereby preventing the return of the cylinders into contact.
In planographic machines it is of great importance that the form should be accessible cially while the order to effect this,
ably arranged in ally descending structure as 1, the impression most one and th the lowermost one. der is arranged adjacent to of the feed board.
carrying cylinder at all times, and espemachine is' running. In
the cylinders are preferform a gradushown in Fig. cylinder being the upper e form carrying cylinder The impression cylinthefeedin end and the gradual decontact to soending structure preferably exten s in under the feed board inking apparatus the said form carrying cylinder. r0lls, -'are preferably located adjacent to lower surface. of
51 to be arranged above The water the said form carrying cylinder; This arrangement, it will be observed, leaves the rear surface of the said form carrying cyl it} accessible to the can be wiped or chine is running. the in printing and inder exposed and renders pressman so that the form dampened while the ma- Tt is also desirable that impression cylinders be shaft 31, and when.
sufiicient to allow thethe accessible for the purpose of repairing or ing' mechanism with relation to each other. ,The' reason for this is yery plain. If the printing cylinder were located. in front of the impression cylinder, the sheet would have passed the point of. contact between the two cylinders beforethe transfer in ink would have time to reach the said point of contact For it will be readily understood that suflicienttime must be allowed for the form carrying cylinder to move into contact with the printing cylinder and for the transfer in ink to reach the point of contact between the said printing and impression cylinders. The distance circumferentially from the feed-ingpoint of the' impression cylinder to the point of contact between the impression and printing cylinders should therefore be longer than the distance circumferentially between the points of con tact of the printing cylinder with the form carrying and impression cylinder. While the arrangement of these cylinders could doubtless be varied shown herein, the said arrangement should preferably be such that the printing .cylinder is located'at least rearwardly of the der. The said inking apparatus, if desired, may be connected to the tripping mechanism in a mannersimila'r to the structure 1906, Ser. No. 308839.
The style of delivery used in the presentinstance is a printed side up delivery located in front of the impression cylinder and is indicated by the tapes 52.
The gearing used in the present instance is of the usual character and is constructed as follows: 53 indicates the power shaft carrying the pinions 54'. and 55 which latter meshes with the intermediate gear 56 which transmits its motion to the pinion 57 meshing with the gear 58 on the shaft 1'2. Pinion 54 meshes with the gear 59 on the printing cylinder which gear meshes with the gems 60 and 61 on the form carrying and'impression cylinders.
What is claimed is:
1. In a printing machine, the combination with a printing mechanism composed of an impression member, a form carrying memher, and a printing member interposed between the two, of a tripping mechanism for tripping and untripping the form carrying and impression members with relation to the printing member.
tioning of the several cylinders of the printvertical center, line of the impression cylin-' disclosed in an application filed March 30,
from the arrangement with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of a tripping mechanism for sequentially tripping and untripping the form carrying and impression members with relation to the printing member, so timed that the form carrying member moves into and out of contact with the printing member ahead of the impression member.
3. In a printing machine, the combination with a printing mechanism, composed of an impression member, a form carrying member, and a printing member interposed be tween the two, of means for tripping and untripping the form carrying member with relation to the printing member, means for tripping and untripping the impression member with relation to the printing member, and an actuating device controlling both of the said tripping means.
4. In a printing machine, the combination with a printing mechanism composed of an impression member, a .form carrying member, and a printing member interposed between the two, of means for tripping and untripping the form carrying member with relation to the printing member, means for tripping and untripping' the impression member with reference to the printing member, timed to act subsequently to the tripping means of the form carrying member, and an actuating device controlling both tripping means.
5. In a multirevolution printing machine, the combination with a printing mechanism composed of an impresslon member, a form carrying member, and a printing member interposed between the two, of an automatic tripping mechanism adapted to trip and untrip the several members of the printing mechanism once to each cycle of the machine in such a manner that the form carrying and printing members are tripped and untripped ahead of the impression and printing members, and an interrupting means for interrupting the operation of the said automatic means acting sequentially to maintain the members tripped.
6. In a multirevolution printing machine, the combination with a printing mechanism composed of an impresslon member, a form carrying member, and a printing member adapted to receive a transfer in ink'of the matter to be printed from the form carrying member once to each cycle of the machine, and sequentially to print the said transfer on the sheet carried by the impression mem- .-ber during the same cycle of the machine.
of an automatic tripping mechanism adapted to trip and untrip the several members of the printing mechanism sequentially during each cycle of the machine, so that the form carrying and printing members are tripped and untripped ahead of the impression and the combination with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of an automatic tripping mechanism for tripping and untripping the form carrying and impression members with relation to the printing member once to each cycle of the machine.
8. In a printing machine, the combination with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of an automatic tripping mechanism, for sequentially tripping and untripping the form carrying and impression members with relation to the printing member so timed that the form carrying member is moved into and out of contact with the printing member ahead-of the impression member,
9. In a printing machine, the combination with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of an automatic tripping mechanism for sequentially tripping and untripping the form carrying and impression members with relation to the printing member so timed that the form carrying member is moved into and out of contact with the printing member ahead of the impression member, and an interrupting means for interrupting the operation of the automatic means so as to maintain the form carrying and impression members tripped with relation to the printing member.
10. In a printing machine, the combination with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of an automatic tripping mechanism for sequentially tripping and untripping the form carrying and impression members with relation to the printing member so timed that the form carrying member is moved into and out of contact with the printing member ahead of the impression member.
11. In a multirevolution printing machine, the combination with aprinting mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of means for automatically tripping and untripping the form carrying member with relation. to thevprinting member once to each cycle of the machine, means for automatically tripping anduntripping the impression member with relation to the printing member once to each cycle of the machine,
cally tripping and untripping the impression member with relation to the printing member once to each cycle of the machine timed to act sequentially to the tripping means of the form carrying member, an an actuating device controlling both of the said tripping means.
13. In a multirevolution printing machine, the combination with a printing mechanism composed of an impression member, a form carrying member, and a printing member interposed between the two, of means for automatically tripping and untripping the form carrying member with relation to the printing member once to each cycle of the machine, means for automatically tripping and untripping the impression member with relation to the printing member once chine, means for interrupting the operation of the automatic tripping means of the form carrying member so as to maintain the latter tripped, means for interrupting the operation of the automatic tripping means of the impression member so as to maintain the latter tripped, and an actuating device common to both interrupting means' 14. In a multirevolution printing ma chine, the combination with a printing mechanism composed of an impression memher, a form carrying member, and a printing member interposed between the two, of means for automatically tripping and untripping the form carrying member with relation to the printing member once to each cycle of the machine, means for automatically tripping and untripping the 1mpression member with relation to the printing member once to each cycle of the machine so timed so as .to operate subsequently to the automatic means for tripping the form carrying member, means for interrupting the operation of the automatic means of the form carrying member, so as to maintain the latter tripped, means for interrupting the operation of the automatic means of the impression member so as to maintain the latter tripped, and an actuating device common to both interrupting means which when set in motion causes the said interrupting means to act sequentially.
15. In a n'mltirevolution printing machine, the combination of two cylinders, two rockshafts means for tripping and untripwithto each cycle of the ma-.
ping the said cylinders from the said rockshafts, means for rocking the two rockshafts comprising ing one revolution to each cycle of the machine, and timed one ahead of the other, connections between the said rockshafts and cams, two sliding and rocking cams adapted to render the connections aforesaid inoperative when properly positioned, an actuating device for simultaneously positioning both of said sliding and rocking cams, and means timed one ahead of the other for causing the said sliding and rocking cams to act sequentially during the same cycle of the machine to render the said connections inoperative.
'16. In a printing machine, a printing mechanism consisting of an impression cylinder, a form carrying cylinder, and a printing cylinder interposed betweenthe two and arranged so that'the distance circumfer'entially from the feeding point of the impression cylinder to the point of contact between the impression and printing cylinders is longer than the distance circumferentially between the points of contact of the printing cylinder with the form carrying and impression cylinders.
. 17. In a printing machine, a printing mechanism consisting of an impression cylinder, a form carrying cylinder located in the rear of the impression cylinder, and a printing cylinder interposed between the two and located rearwardly of the vertical center line of the impression cylinder this arrangement being such that the distance circumferentially from the feeding point of the impression cylinder to the point of contact between the impression and printing cylinders is greater than the distance circumferentially between the points of contact of the printing cylinder with the form carrying and impression cylinders.
18. In a printing machine, the combination with a feedboard having a hinged leaf, of a printing mechanism comprising an impression cylinder located adjacent to the feeding point ofthe feedboard, a form carrying cylinder located in the rear of the impression cylinder and below the feedboard,
and a printing cylinderinterposed between the two, whereby the rear surface of the form carrying cylinder is exposed and acoessible while the ,machine is running, and whereby the impression and printing cylinders can be exposed by lifting the leaf of the feedboard.
two rotating cams mak- 19. In a multirevolution printing machine,
the combination with a feedboard having a hinged leaf, of a printin mechanism comprising an impression cy inder located adjacent to the feeding point of the feedboard, a form carrying cylinder located in the rear of theimpressmn cylinder and below the feedboard, and a printing cylinder inter- "mechanism composed of a form carrying posed between the two, whereby the-rear surface of the form carrying cylinder is exposed and accessible while the machine is running, and whereby the impression and printin cylinders can be exposed by lifting the lea? of the feedboard, and a delivery mechanism located. in front of the impression cylinder.
20. In a printing machine, the combination with a printing mechanism. composed of an impression member, a form carrying member, and a printing member interposed between the two, of a tripping mechanism for sequentially separating the several members'of the printing mechanism, the separation between the form carrying and the printing members being eflected ahead of the separation between the printing and impression members, the said form carrying and printing memberj being maintained in their separated position while the separation between the printing? and impression members takes place. 5:
21. In a multi-reiiolution printing machine, the combination with a printing mechanism, composed of-an impression member, a form carrying member and the printing member interposed between the two, of an automatic tripping mechanism, for sequentially separatingthe several members of the printing mechanism, once to each cycle of the machine, the separation between the form carrying and rinting members being effected ahead of the separation between the printing andimpression members, the said form carrying and printing members being maintained in their separated position while the separation between the printing and impression members takes place.
22. In a multi-revolution printing ma-' chine, the combination with a printing mechanism" composed of an impression. member, a form carryin member, and a printing member, adapte l to receive a transfer in ink of the matter to be printed from the form carrying member, once to each cycle of the machine, and sequentially to print the said transfer on the sheet carried by the impression member during the same cycle of machine, of an automatic tripping mechanism for sequentially separating the several members of the printing mechanism, once to each cycle of the machine, the separation between the form carrying and printing members being efiected ahead of the separation between the printing and impression members, the said form carrying and printing members being maintained in their separated sition while the separation between the printing and impression members takes place.
23. In a multi-revolution printing ma-' chine, the combination with a printing cylinder, an impression cylinder and a printing cylinder interposed between the two,
ders with reference to the third ofsaid cylinders one ahead of the other, once to each cycle of the machine, an interrupting means for interrupting the operation of the said automatic tripping mechanism, and anactuating device which when set in motion, causes the interrupting means to act sequentially during the samevcycle of the machine to maintain the two cylinders tripped.
24. In a multirevolution printing machine, the combination with a printing mechanism composed of an impression cylinder, a form carrying cylinder, anda printing cylinder interposed bet-ween the'-two, of an automatic tripping mechanism for tripping and untripping the impresslon ,and
form carrying cylinders, with relation to the printing cylinder one ahead of the other once to each cycle of the machine, an lnterruptin means for interrupting the operation 0 the said automatic tripping mechanism, and an actuating device which, when set in motion, causes the interrupting means to act sequentially, during the same cycle of the machine, tomaintain the cyllnders trippedy v 25. A two-revolution printing mechanism composed of an impression cylinder, a formcarryin cylinder and a printing cylinder adapte to receive a transfer in ml: of the matter'to be printed from the form-carrying cylinder once to each cycle of the machine and sequentially during the same cycle to print the said transfer on the 'sheet carried by the impression cylinder, the cyhnders being so arranged that the distance circumferentially from the feeding point of the impression cylinder to the point of contact between the impression and pr1nt .ing cylinders is longer than the distance circumferentially between the point-s of con-- tact of the printing cylinder with the formcarrying and impression cylinders, and automati'c means for tripping and untrlpplng the cylinders sequentially during the same cycleso that the form-carrying and rlntmg cylinders contact aheadof fthe prlnting and impression cylinders.
26. A multi-revolution prmtlng mechanism composed of an impression member, a
form-carrying member, and a printing member adapted to receive a transfer in ink of the matter to be printed from the formcarrying member once to each cycle of the machine and sequentially during the same cycle to print the said transfer on the sheet carried by the'impression member, the members being so arranged that the distance from the feeding point, of the impression member to the point of contact between the impression and printing members is greaterthan the distance between the points of con" tact of the printing member With the formcarrying and impression members, and-automatic means for tripping and untripping the members sequentially during the same cycle so that the form-carrying and printing members contact ahead f the printing and impression members.
Signed at New York city this 19th day of April 1906.
WALTER SCOTT.
Witnesses:
AXEL V. BEEKEN, IVAN E. A. KONIGSBERG.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425327A (en) * 1944-04-29 1947-08-12 Addressograph Multigraph Printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425327A (en) * 1944-04-29 1947-08-12 Addressograph Multigraph Printing machine

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