EP0274880A1 - Machine à découper du papier - Google Patents

Machine à découper du papier Download PDF

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Publication number
EP0274880A1
EP0274880A1 EP19870311089 EP87311089A EP0274880A1 EP 0274880 A1 EP0274880 A1 EP 0274880A1 EP 19870311089 EP19870311089 EP 19870311089 EP 87311089 A EP87311089 A EP 87311089A EP 0274880 A1 EP0274880 A1 EP 0274880A1
Authority
EP
European Patent Office
Prior art keywords
sheets
punch
stack
segregated
receptor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19870311089
Other languages
German (de)
English (en)
Inventor
William H. Abildgaard
Dale Ransom
Phillip M. Crudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VeloBind Inc
Original Assignee
VeloBind Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VeloBind Inc filed Critical VeloBind Inc
Publication of EP0274880A1 publication Critical patent/EP0274880A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0675—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0087—Details, accessories or auxiliary or special operations not otherwise provided for for use on a desktop

Definitions

  • This invention relates to a punch for punching a plurality of sheets.
  • a punch for punching rival sheets comprising a sheet receptor having a rear plate, bottom support means for supporting a stack of said sheets in substantially vertical position, biasing means releasably biasing said stack toward said rear plate, jogging means for jogging said stack, segregating means on said bottom support means for separating from the front of said stack a segregated plurality of sheets of pre-determined thickness, a sheet punch having an upward-facing throat, and first transfer means for transferring said segregated plurality of sheets from said receptor and into said throat and, punch actuating means for actuating said punch when said segregating plurality of sheets is in said throat, second transfer means for transferring punched sheets from said sheet punch to a discharge station.
  • one of the features of the invention is the fact that the stack is handled in vertical position.
  • the stack is jogged to segregate out of the stack a batch of a thickness which the punch will accommodate. Thus, no knife is required to separate the batch from the stack.
  • jaws grip the top edge of the batch, lift the same and insert it into a slot, then lower the batch down the slot until the lower edges of the sheets rest on the bottom of the punch.
  • the punch pins then reciprocate horizontally punching a series of holes distributed along the bottom edge of the sheets.
  • the second batch of sheets is being segregated.
  • one set of jaws grips the first batch and another set the second batch, lifting each batch upward and rearwardly.
  • the first batch is inserted in a slide which conducts the punched sheets to a discharge tray while the second batch is lowered into the punch.
  • Timing of the sequence of operations is, in the preferred embodiment hereinafter described, accomplished by a timing shaft containing a plurality of cams. However, it will be understood that other means for timing the sequence may be used.
  • the cycle is repeated until the entire stack has been punched.
  • One of the features of the invention is the fact that "signatures" of sheets of the type used in commercial book printing may be punched, each signature being handled in the same manner as a batch of sheets.
  • the present invention eliminates what has heretofore been a complicated series of hand operations.
  • the function of the machine hereinafter described is to punch holes along a marginal edge in a stack 49 of sheets.
  • the size and spacing of the holes is subject to considerable modification.
  • the holes are intended for binding the sheets into a book using binding strips such as are shown in U.S. Pat. 4,369,013.
  • the frame of the machine has a base 51 from which extend upwardly sides 52R and 52L. It will be understood that for convenience in describing the machine, the front of the machine is as viewed from the left in Fig. 2.
  • the righthand side of the machine is the righthand side of Fig. 1 and the lefthand side of the machine is the lefthand side of Fig. 1.
  • the term "advance” in describing any mechanism or paper path is from the front toward the rear and the term “retract" is in the opposite direction.
  • a casing 53 which has a door 54 in the front which opens forwardly.
  • a main motor 56 which, through a gear reduction, turns a drive pulley 57 which drives a driven pulley 58 through belt 59.
  • Driven pulley 58 turns timing shaft 61 which extends horizontally transversely across the machine above the base 51 and adjacent the rear of the machine.
  • timing shaft 61 which extends horizontally transversely across the machine above the base 51 and adjacent the rear of the machine.
  • cams on shaft 61 the cam followers of which cause pivotal movement of various levels as hereinafter described.
  • other timing means may be employed, such as electronic timing means.
  • solenoids, electric motors, pneumatic or hydraulic means, and others might be used to perform the various mechanical functions of the parts illustrated and described.
  • Controlled by timing and actuating shaft 61 are eight cams.
  • First cam 62 advances the paper pusher support.
  • Second cam 63 starts the single cycle punch motor and also stops the motor which the gripping mechanism is at the top of its movement.
  • Third cam 64 controls forward and rearward movement of the levers which advance the paper.
  • Fourth cam 65 opens and closes the jaws carried by the levers to grip segregated batches of paper.
  • Fifth cam 66 raises and lowers the aforesaid levers.
  • Sixth cam 67 controls the swinging paper guide.
  • Seventh cam 68 controls movement of the paper retractor and eight cam 69 controls the paper pusher support retractor.
  • drawer 71 Attached to the inside of door 54 is drawer 71 which is normally vertically disposed and has on its lower edges rearward extending supports 72 for the bottom of the stack. There are also side supports 75 for the stack which are fixed to the drawer 71.
  • a paper advance 73 which is mounted at about half way of its height on a pivot shaft 74 which extends horizontally across the drawer 71 and projects outward on either side thereof into slots 77 in slide extensions 76.
  • Slide extensions 76 are fixed to door slides 78 which are in turn received in stationary door slides 79 fixed relative to sides 52R and L.
  • Hinge 81 hinges drawer 71 to slide 78.
  • Latch 82 latches the drawer 71 to the casing 53.
  • latch 82 is opened, the drawer is pulled forward, slide 78 sliding in slide 79.
  • slide 78 sliding in slide 79.
  • the advancer 73 is pivoted parallel to the drawer 71 about shaft 74.
  • an advancer lever 96 which is pivoted about horizontal transverse pivot shaft 97. Reciprocating longitudinally of the machine on the bottom of the right side are first horizontal link 98 and parallel adjacent second horizontal link 99.
  • Link 99 is formed with a pair of longitudinally spaced horizontal slots 101. Pins 102 fixed to link 98 extend into slot 101 and the links 98, 99 are biased in opposite directions by spring 103. The use of slots 101 and pins 102 permits accommodation of the movement of the lever 96 dependent upon the quantity of paper in the stack 49.
  • Link 99 has an upward extension 104 having roller 106 bearing against cam 62.
  • cam causes the advancer 73 to move stack 49 rearward against back 86 as jogging of the stack commences.
  • a shaft 111 Extending transversely of the machine at the bottom front corner thereof is a shaft 111 which is turned by the punch motor as hereinafter explained.
  • a jogging cam 112 On the right end of shaft 111 is a jogging cam 112, here shown as a triangular member which is engaged by a follower 114.
  • Follower 112 has an upward extension 116 which is pivotally connecting to arm 117 projecting from longitudinal shaft 118 received in a pillow block 119 in the upper righthand corner of the machine.
  • An extension 89 is Hence, as shaft 111 turns, the stack 49, held against receptor back 86 with a controlled amount of pressure, is jogged.
  • the jogging movement causes a predetermined quantity of sheets from the stack 49 to pivot down to the right as best shown in Fig. 9.
  • the upper edge of the balance of the stack 49 is at a higher elevation than the particular batch of sheets which has been jogged and turned downwardly between the terminuss 91 and the receptor back 86. (See Fig. 9).
  • a stabilizer 123 Fixed adjacent the top righthand corner of receptor back 86 is a stabilizer 123 which keeps the segregated batch of sheets from falling forward.
  • crank-follower 126 On the left side of the machine adjacent the back thereof is a cam-follower 126 which is engaged at a certain stage in the rotation of the pulley 58 by the seventh cam 68.
  • follower 126 is pivoted by pivot 127 to the left side 52L.
  • the opposite end of follower 126 is pivotally connected to link 128 which is, in turn, pivoted to crank 129 extending from transverse horizontal shaft 131 adjacent the top front corner of the machine.
  • an arm 132 On the opposite, or righthand side of shaft 131, is an arm 132 which contacts and pushed forward crank 134 pivoted to the side 52R. Extending upward of crank 134 is paper retractor pin 133.
  • the elevation of pins 133 is below the elevation of the stack 49 which has not been tilted into the stabilizer 123, but is above the elevation of the stabilizer 123 and the first batch of sheets which is held therein.
  • cam 68 turns, the pin 133 is moved forward and pushes the balance of the stack which is not within the gauge 123 forwardly against the force of return spring 136.
  • Link 138 is formed with an elongated lost motion slot 139 in which is received pin 141 on arm 132. See Figs. 15-18. After the pin 133 has had time to retract all the paper on the right upper corner of stack 49 which has not been segregated into stabilizer 123, pin 141 reaches the end of slot 139 and thus causes rocker arm 142 to pivot, raising link 143 and thereby pivoting crank 144 and shaft 146 connected thereto. Shaft 146 is received in pillow block 147 and at its opposite end has an arm 148 on the outer end of which is a finger 149.
  • the finger 149 is dropped between batch 124 and the remainder of the stack about half way betwen the sides of the stack, thereby holding the stack 49 in retracted position until the segregated batch 124 of sheets can be gripped by jaws thereinafter described and removed from the receptor 85.
  • Arms 163 pivoted to the inner sides of sides 52L and R on either side of the machine have a clevis 167 which receives pivot shaft 74 with a loose fit.
  • switch 246 opens, energizing a timer which permits the punch to operate until the last batch 124 has been punched and discharged.
  • switch 235 does not sense discharge of a batch 124 from the machine within a predetermined time (e.g., three seconds)
  • solenoid 257 on the left side of the machine (see Fig. 5) is energized, depressing its plunger 252.
  • Link 253 attached to plunger 252 pulls level 158 down.
  • Lever 158 is pivoted at its forward end to link 159 which is pivoted at its forward end to transverse horizontal pivot 161.
  • lever 158 The rearward end of lever 158 is formed with cam 152 which engages follower 153 and a shoulder 155 on the upper end of lever 156 which is pivoted by pivot 157 to slide 52L.
  • the lower end of lever 156 has a follower 154 which normally is out of the path of cam 69 on pulley 58.
  • the arms 163 push against the shaft 74 and retract the advancer 73, thereby permitting retractive movement of pin 133 and providing sufficient space for finger 149 to be depressed into the space between the stack 49 and the segregated batch 124.
  • a swinging guide 197 which is intermediate guides 203 and 204.
  • Guide 197 has a rearward bent upper end 198 and is pivoted on transverse horizontal shaft 198 and biased forwardly by spring 200.
  • the swinging movement of guide 197 is controlled by cam 67.
  • a follower 196 is controlled by cam 67 and is attached to the guide 197.
  • Turning movement of timing shaft 61 causes the swinging guide to move from a rearward position when batches 124 are being inserted in the slot 207 and to move to a forward position when batches 124 are being deposited in discharge slot 208.
  • transverse horizontal shaft 171 which is journaled in rearward extensions 172 of the sides 52R, 52L.
  • Fixed to and extending upwardly from shaft 171 are parallel, generally vertically extending arms 173 which are connected together by transverse tie 174 near their lower ends.
  • Supported by the upper ends of arms 173 are horizontal transverse upper shaft 176 and intermediate shaft 177.
  • Fixed for rotation to shaft 177 is forward extending lower arm 178 and generally parallel thereto is forward extending arm 179 fixed at its rear end to shaft 176.
  • At the forward end of lower arms 178 is transverse horizontal outer lower shaft 182 and, at the forward ends of arms 179, is outer upper shaft 181.
  • the shafts 181 and 182 are interconnected by vertical link 183.
  • Cam 65 on shaft 61 controls the opening and closing of jaws which grip batches of paper to transport the same from the receptor 85 to the punch slot 207 and then to the discharge slot 208.
  • Cam-follower 211 is controlled by cam 65 and is pivoted forwardly at pivot 212 to a stationary portion of the machine.
  • a link 213 which is pivotally connected to arm 214 fixed to shaft 176.
  • Another arm 216 also fixed to shaft 176 is pivotally connected to a forwardly extending link 217.
  • Link 183 at the forward ends of arms 178 and 179 has a rearward extension 251.
  • a vertical rear first jaw grip 212 depends from extension 251 and a rear second jaw grip 219 likewise depends therefrom.
  • Reciprocating alongside extension 221 is left jaw member 223 which is formed with longitudinally extending slots 224.
  • Depending from member 223 is forward second jaw grip 226.
  • right jaw member 227 also formed with slots 228.
  • Transverse pins 231 extend through slots in the members 221, 223 and 227 to hold the same in parallel relationship.
  • Springs 232 are connected between extension 221 and the members 223 and 227 bias the members 223 and 227 rearwardly.
  • On the forward end of link 217 is a pin 233 which reciprocates in the slots 224 and 228.
  • the jaws open and close in timed relation to the movement of arms 178 and 179.
  • springs 232 bias the jaw members 222 and 229 in closed position and also bias the members 219 and 226 in closed position.
  • Variations in thickness of batches 124 is accommodated by reason of the fact that flexible springs 232 rather than positive mechanical movement close the jaws.
  • shaft 176 is oscillated causing the link 217 to move forwardly and to move the pin 233 to the forward end of slots 228 causing the jaw members 223 and 227 to move forward relative to extension 221 and open the jaws.
  • the punch hereinafter described and illustrated herein is an adaptation of that punch shown in U.S. Patent 4,079,647. It will be understood that the structure of the punch is subject to considerably variation.
  • One of the important features of the invention is the fact that the punch reciprocates horizontally and the sheets being punched are disposed substantially vertically as contrasted with common motor-driven punches wherein the paper is horizontal and the reciprocation of the punch mechanism is vertical.
  • an electric motor and gear reduction 301 which is of one cycle duration.
  • the motor is controlled by a cam 63 which controls arm 302 of switch 303 so that for each rotation of shaft 61 the motor is actuated once.
  • the motor turns shaft 236 which has an eccentric pin 304 fixed thereto received in connecting rod 306 on either side of the machine.
  • the motor drives shaft 111 which controls the jogging mechanism and also controls the belts 237 which discharge the paper from the discharge slot 208 after the punched sheets have been deposited therein.
  • female die plate 351 which is a vertical extension of member 203 partially defining slot 207, the outer ends of plate 351 being secured to sides 52R and 52L.
  • Holes 352 are formed in plate 351, the number and location thereof depending upon the holes to be punched in the sheets.
  • the rearward edge of plate 351 is bent horizontally in a stretch 360 which serves as a stop, limiting inward insertion of the batch 124. The distance between stop 360 and holes 352 determines the distance from the marginal edge of the sheets at which the holes are punched.
  • plate 351 Immediately forwardly of plate 351 is a vertical transverse guide plate 353 which is an extension of member 201 and there is a gap 355 between plates 351 and 353 which limits the quantity of sheets which may be punched at one time.
  • Plate 353 is formed with holes 354 which are horizontally aligned with holes 352.
  • Horizontally reciprocating punch plate 356 is in alignment with the holes 352 and 354 and is spaced therefrom by spacer 357.
  • Pins 359 pass through holes in the edges of plates 351, 354.
  • the pins 359 pass through elongated slots 361 in plate 356 so that the plate 356 may reciprocate relative to the stationary elements of the apparatus.
  • An L-shaped secondary guide 362 is fixed to the face of the turned portion of plate 353 and is also apertured in alignment with apertures 352,354.
  • Male punches 363 which are in the form of round cross-­section pins are in alignment with holes 353.
  • the lower ends of pins 363 are ground concave so as to cooperate with holes 352 to punch paper in the gap 355.
  • the outer end of each pin 363 is formed with an enlarged heat 364 which is received in a slot 366 in punchplate 356.
  • Below slots 366 are inward extending shoulders 369 formed integral in plates 356 which engage under the heads 364.
  • Actuation of the reciprocation of punch plate 356 is accomplished by oscillation of punch connecting rod 306. It will be noted that plate 356 has outward extensions 367 at either end which project through slots in sides 52R and L and have ears 368 which are received in a hole in the forward end of connecting rod 306.
  • the punch motor 301 turns transverse horizontal shaft 236 which carries pulleys connected by a series of belts 237 to pulleys on shaft 111.
  • Batches 124, 125 deposited in discharge slot 208 contact belts 237 and are moved forward, the batches being deposited in tray 238 and resting on bottom 239 until a stack 49 of punched paper equivalent to initial stack 49 is built up.
  • the arms 178, 179 are in elevated and retracted position and the jaw members 225 and 227 are open (see Fig. 5).
  • Drawer 71 is empty and advancer 73 is fully forward. The operator unlatches latch 82 and pulls the drawer 71 forward, and then tilts the drawer so that it extends upwardly forward. A stack 49 is inserted in drawer 71 in front of the advancer 73. The drawer is then closed and latched, advancing the stack into receptor 85.
  • cam 65 causes the jaws to close by the springs 232 pulling the jaw members 223 and 227 rearwardly. Variations in thickness of the batch 124 are accommodated by the spring 232.
  • cams 64 and 66 cause the arms 178 and 179 to lift the batch 124 upward and slightly rearward so that the lower end of first batch 124 fits into punch slot 207 (see Fig. 21).
  • the swinging guide 197 is in its backward position.
  • the batch 124 is lowered to the bottom of the punch slot 207 as shown in Fig. 22.
  • cam 63 energizes the punch motor 301 causing the punch to punch holes in the first batch 124.
  • the debris drops down via the bent lower end 241 of member 197 into debris tray 242 where the debris is collected and may be removed as required. (See Fig. 22).
  • the shaft 236 turns and causes the belt 237 to move the batch 124 which is being discharged downward and forward so that batch 124 drops into the tray 238 as shown in Fig. 7.
  • the cycle of punching batches is repeated until the entire stack 49 has been punched.
  • a limit switch 246 is located in front of back 86 and has an arm, 247 which projects forwardly. Advancer 73 is formed with a notch 248 so that only paper in the receptor 85 will hold the switch arm 247 inward (i.e., rearward). When the arm 247 can freely move forwardly it senses that there is no paper in the receptor. Thereupon, the solenoid 251 is energized, causing its plunger 252 to be depressed. Link 253 attached to plunger 252 pulls the lever 158, moving the advance 73 forward to its full open position. The machine then stops.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP19870311089 1986-12-16 1987-12-16 Machine à découper du papier Ceased EP0274880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94236586A 1986-12-16 1986-12-16
US942365 1986-12-16

Publications (1)

Publication Number Publication Date
EP0274880A1 true EP0274880A1 (fr) 1988-07-20

Family

ID=25477988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870311089 Ceased EP0274880A1 (fr) 1986-12-16 1987-12-16 Machine à découper du papier

Country Status (3)

Country Link
EP (1) EP0274880A1 (fr)
JP (1) JPS63200999A (fr)
AU (1) AU593157B2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363590A (en) * 2000-05-18 2002-01-02 James Burn Internat Ltd A Punching Apparatus
CN112025836A (zh) * 2020-08-18 2020-12-04 河南经贸职业学院 一种多功能会计专用桌

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2568579B2 (ja) * 1987-09-10 1997-01-08 松下電器産業株式会社 手差し型紙用穴あけ装置
CN113858331B (zh) * 2021-10-22 2023-05-12 南京铭道科技有限公司 一种用于家具制造的芯材开孔设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1436913A1 (de) * 1965-10-22 1968-11-14 Scionics Corp Geraet zum Schneiden von Karton od.dgl.
DE3424337A1 (de) * 1983-06-28 1985-01-10 Gerhard 2105 Seevetal 2 Busch Horizontal-stanzautomat mit abgreifvorrichtung und uebergabestation
DE3340506A1 (de) * 1983-11-09 1985-05-15 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Vorrichtung zum stanzen von blattlagen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143168B (en) * 1983-06-28 1986-10-15 Gerhard Busch A horizontal automatic machine having a gripping/lifting attachment and a transfer station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1436913A1 (de) * 1965-10-22 1968-11-14 Scionics Corp Geraet zum Schneiden von Karton od.dgl.
DE3424337A1 (de) * 1983-06-28 1985-01-10 Gerhard 2105 Seevetal 2 Busch Horizontal-stanzautomat mit abgreifvorrichtung und uebergabestation
DE3340506A1 (de) * 1983-11-09 1985-05-15 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Vorrichtung zum stanzen von blattlagen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363590A (en) * 2000-05-18 2002-01-02 James Burn Internat Ltd A Punching Apparatus
EP1170230A2 (fr) * 2000-05-18 2002-01-09 James Burn International Limited Dispositif de poinçonnage
EP1170230A3 (fr) * 2000-05-18 2002-06-12 James Burn International Limited Dispositif de poinçonnage
GB2377199A (en) * 2000-05-18 2003-01-08 James Burn Internat Ltd A punching apparatus feed system
GB2377199B (en) * 2000-05-18 2003-06-18 James Burn Internat Ltd A punching apparatus
CN112025836A (zh) * 2020-08-18 2020-12-04 河南经贸职业学院 一种多功能会计专用桌

Also Published As

Publication number Publication date
JPS63200999A (ja) 1988-08-19
AU593157B2 (en) 1990-02-01
AU8260887A (en) 1988-06-16

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