US3583696A - Apparatus for feeding and removal of flat items into and from a processing machine - Google Patents
Apparatus for feeding and removal of flat items into and from a processing machine Download PDFInfo
- Publication number
- US3583696A US3583696A US750591A US3583696DA US3583696A US 3583696 A US3583696 A US 3583696A US 750591 A US750591 A US 750591A US 3583696D A US3583696D A US 3583696DA US 3583696 A US3583696 A US 3583696A
- Authority
- US
- United States
- Prior art keywords
- items
- separator
- roller
- rollers
- driven
- 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.)
- Expired - Lifetime
Links
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000033764 rhythmic process Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 4
- 230000001020 rhythmical effect Effects 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
- B65H29/46—Members reciprocated in rectilinear path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0661—Rollers or like rotary separators for separating inclined-stacked articles with separator rollers above the stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0676—Rollers or like rotary separators with two or more separator rollers in the feeding direction
Definitions
- a novel apparatus for feeding and removing flat items such as paper sheets, letter envelopes or paper strips, into and from a processing machine such as an addressograph.
- the novel apparatus is characterized by the features that transporting means are provided to remove the flat items subsequent to processing thereof in a cyclic or rhythmic fashion and in a direction counter to their feeding direction.
- This invention generally relates to a feeding apparatus and particularly concerns an apparatus for both feeding and removing flat items such as paper sheets, letter envelopes or paper strips, into and from a processing machine such as an Addressograph.
- the instant invention contemplates, as a primary object thereof, the solution to the problem associated with processing machines such as an Addressograph relating to accelerating, feeding, and removing of such flat items.
- a further object of the subject invention is the provision of an apparatus for feeding and removing such flat items which functions in an automatic fashion to thus eliminate the need for individual manual insertion.
- the subject inventive apparatus which is characterized by the features that the apparatus includes a transporting means for removing the flat items subsequent to processing thereof, the removal taking place in a cyclic or rhythmic fashion and in a direction counter to the feeding direction of the items.
- a transporting means for removing the flat items subsequent to processing thereof, the removal taking place in a cyclic or rhythmic fashion and in a direction counter to the feeding direction of the items.
- FIG. 1 is a sectional view taken through the novel apparatus comprising the subject invention taken along the lines l-l of FIG. 3;
- FIG. 2 is a side elevational view of the apparatus comprising the subject invention taken in the direction of the arrow A of FIG. 3;
- FIG. 3 is a front elevational view of the novel inventive apparatus taken in the direction of the arrow B of FIG. 2.
- the novel apparatus is seen to be equipped with two vertical, plate-shaped sideplates 2 disposed at a distance from each other by means of rods 3.
- a rotatable, tilting table 4 is mounted between the two side plates 2, the table being pivotally mounted about a horizontal rotating bolt 5 and rotated through the turning of a head screw 6.
- Table 4 is provided to receive a stack 46 of flat items to be subsequently addressed or otherwise processed, the flat items preferably comprising letter envelopes, paper sheets, newspapers or the like.
- the items are laterally guided on the table 4 by means of adjustable stop tin sheet plates such that, through a simple adjustment, the format can be changed.
- the stacked flat items which inherently possess a certain stiffness are moved forwardly single and successively, one after the other, by means of a separator device 7 having a housing 50 pivotably mounted on the shaft 3 and which is described hereinbelow in greater detail.
- a soft rubber strip 8 is transversely mounted on the table 4 so as to forwardly transport, in each instance, only a single item.
- the soft rubber strip 8 has a relatively greater frictional resistance which is greater than the frictional resistance of the flat items on the table 4 and which is further greater than the frictional resistance of each of the items stacked on top of one another. As a result thereof, only the uppermost item of the stack 46 can each successively pass through a roller 35 and the soft rubber strip 8.
- a first shaft 10 having transport wheels 11 disposed thereon is provided at the front end of the table 4.
- the surface of the transport wheels 11 is equipped with rubber rings or bands for increasing the gripping ability thereof.
- a second shaft 12 is disposed beneath and in parallel relation to shaft 10 and is likewise equipped or provided with transport wheels 13, 15. At least two of the transport wheels 11, 13 contact or come to lie against each other with their respective rubber layers such that the transport wheels 11, 13 rotate with each other together with shafts 10, 12.
- the novel apparatus is set into motion by means of an electric motor 17 via a gear belt 18 running on a wheel 20 disposed on the shaft 12.
- An endless rubber band or belt 21 is respectively disposed around both rollers 15, the rubber bands or belts 21 being led, in the rear of the apparatus, around respective reversal rollers 22.
- the lower side of the rubber band or belt 21 runs closely above the surface 23 of the underlying table such that a flat item lying on the table surface 23 which comes within the range of the band roller 15 is taken up and along by the belt 21 in the direction of arrow C and is transported to the rear of the novel apparatus by sliding along on the table surface 23.
- a microswitch 38 is disposed beneath the tilting table 4 and has an activating lever 39 extending into the area between the two roller pairs 11, 13. Microswitch 38 is itself electrically connected with an electromagnet 31 to be discussed below.
- the entire unit is provided with 4 feet 24 and rests on the table surface 23 of a processing machine such as an Addressograph.
- An electromagnet 25 is placed an adjustable distance in front of the novel inventive apparatus on the surface 23 of the machine table.
- a slide 27 rests on the table surface 23 and is connected with a plunger 26 of the electromagnet 25. When current is applied to the electromagnet 25, the plunger 26 performs a movement in the direction of arrow E.
- the casing of electromagnet 25 is secured to the machine table, preferably by means of nonillustrated permanent magnets, such that the position of the electromagnet 25 can be easily changed if the format of the items to be processed changes.
- the intermittent or cyclic drive for the separator mechanism 7 is initiated from a gear belt 18 when the gear belt 18 is pressed against a friction wheel 30 via an angle arm or lever 28 associated with electromagnet 31 and a roller 29.
- friction wheel 30 is entrained as soon as current is applied to the electromagnet 31.
- electromagnet 31 is mounted exteriorly on the side plate 2 by means ofan angle piece 32.
- the novel apparatus of the subject invention operates in the following manner.
- the items to be processed such as letter envelopes to be provided with addresses, are initially placed on the tilting table 4 in a stack 46.
- An electrical impulse which may be manually provided or which preferably is cyclically or periodically provided from the processing machine itself, sets the separator mechanism 7 into operation in that current is applied to the electromagnet 31 and, as a result thereof, the gear belt 18 presses against the friction wheel 30 thus setting friction wheel 35, intermediate wheel 36 and transport wheel 37 into rotation wheels being supported at the housing 50. Accordingly, the uppermost of the flat, stacked items 46, is taken up by the wheel 37 and is initially transported in the direction of arrow F until the time wherein the flat item reaches the space between the transport wheel pairs ll, 13.
- the item is then taken up by these transport wheel pairs l1, l3 and is transported further such that the item finally comes to lie flat on the table surface 23 and pushes against the slide 27 or some other suitable stop.
- the actual processing operation on the flat items takes place in this position on the table surface 23, the processing operation comprising an addressing step, for example, through the utilization of a head 40 depicted in dotted lines which can be moved up and down.
- other operations such as gluing, impressing, stamping or shearing and the like can likewise take place.
- the processing machine would provide a further electri cal impulse which applies current to the electromagnet 25 actuating the electromagnet 25 and causes slide 27 thereof to move in the direction of arrow E and thereby push the item located on the table surface 23 into the clearance between roller 15 or belt 21, respectively, and the table surface 23. Since roller 15 is run continuously, the item would then be transported in the direction or arrow B to the rear of the novel apparatus. Electromagnet 31 would also receive current simultaneously with the current fed to electromagnet 25 such that the separator mechanism 7 begins to rotate again. Thus, two items would move at the same time, one item being fed to the processing machine, the other item being removed from the processing machine, the items moving in opposite directions to each other without causing any disturbance with respect to each other.
- the item which has been transported away by the belt 21 in the direction of arrow C is collected at the rear of the apparatus, that is, at the right side of the apparatus as depicted in HO 1 by a suitable receiving container 51.
- Microswitch 38 effects interruption of the current to the electromagnet 31 and causes electromagnet 31 to become deenergized or fall off when the item has been gripped by the transport rollers ll, 13. Interruption of the current is effected by actuating the lever 39 of the microswitch 38. Accordingly, the transport function of the separator mechanism 7 is interrupted until a further new impulse is provided from the head 40 or another part of the processing machine whereupon the described operational cycle repeats itself.
- the relatively brief electrical impulses given or provided by the processing machine are conducted to a relay which is equipped with a self-holding switch causing the relay to be pulled up until such time as the circuit is again opened by microswitch 38.
- the distance between the tilting table 4 and the rollers 35 to 37 of the separator mechanism or means 7 can be adjusted to the thickness of the item to be processed during each operation through turning of the screw 6 described above. So as to ensure that the transport takes place without disturbance in the case of relatively long items, a nonillustrated overriding clutch in the form of a ratchet wheel, for example is built into the roller 35, the overriding clutch entering into action as soon as the item is gripped by transport rollers ll, 13, and roller 35 is no longer driven after the electromagnet 31 has fallen off.
- the refilling of the stack 46 can take place by merely rotating or lifting the separator mechanism 7 upwardly around the shaft 3, for example, whereupon a new supply can be placed upon the remaining stack 46 of items.
- a set of intermittently driven separator rollers arranged above said table means and acting on the top of said supply stock and cooperating with friction retaining means arranged below and beneath the foremost roller of said set of separator rollers for separating said items successively one after the other, said retaining means preventing double-feed of the items during the separation of the items individually from the supply stock;
- control means for controlling the rotation of said separator rollers so that they are positively driven until the item is gripped by said transport rollers, said control means containing an actuating lever of a switch, said lever extending into the area of the transport rollers, said switch being connected with an electromagnet means so that the driving connection for the driven separator roller is interrupted as soon as an item is gripped by said transport rollers;
- An apparatus as defined "1 claim said transport rollers feeding said items to the processing machine in a predetermined feeding direction, electromagnetic means for pushing said items in a direction counter to said transport direction in operation rhythm after processing thereof.
- transport rollers being arranged on shaft means for supporting said transport rollers, at least one endless belt disposed around one of said transport rollers and a reversing roller, the lower side of said endless belt lying closely above and substantially parallel to said machine table and forming a clearance space between said machine table and the lower run of said belt for advancing said items on said machine table subsequent to processing thereof.
- said set of separator rollers includes a driven feeder roller, drive means for said driven feeder roller, said drive means comprising a belt by means of which frictional contact is made with said driven feeder roller, said belt further driving one of said transport rollers, and lever means actuated by an electromagnet for causing said frictional contact.
- said table means for receiving a supply stock being mounted to be tiltable around a horizontal axis
- said friction retaining means being an elongated element supported by said table means and having a greater frictional resistance with respect to said items than has said table means, means for angularly adjusting said table means and thereby the relative distance between the separator rollers and said retaining means.
- An apparatus for feeding and removing flat items one by one into and from an addressing machine comprising:
- separator means for delivering one by one said items to a processing area of the addressing said separator means comprising at least one separator roller arranged above said table means coacting with the uppermost of the items on said table means;
- control means for said drive means including a switch having an actuating lever disposed in the path of movement of said transport direction of said items towards said transport rollers, said switch being connected with electromagnetic means in order to interrupt operation of said drive means for said driven at least one separator roller when an item has been gripped by said transport rollers;
- substantially horizontal machine table containing a processing area for a workhead of said addressing machine; electromagnetically operated pushing means for moving said items on said machine table in a direction counter to said transport direction in operational rhythm after processing of said items;
- driven transport means arranged above said machine table forming a clearance space between said machine table and said driven transport means for carrying away said items subsequent to processing thereof;
- processing area being arranged between said transport rollers and said pushing means.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Making Paper Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1132767A CH515126A (de) | 1967-08-11 | 1967-08-11 | Vereinzelungseinrichtung für gestapelte Bogen |
Publications (1)
Publication Number | Publication Date |
---|---|
US3583696A true US3583696A (en) | 1971-06-08 |
Family
ID=4372420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US750591A Expired - Lifetime US3583696A (en) | 1967-08-11 | 1968-08-06 | Apparatus for feeding and removal of flat items into and from a processing machine |
Country Status (8)
Country | Link |
---|---|
US (1) | US3583696A (enrdf_load_stackoverflow) |
BE (1) | BE719317A (enrdf_load_stackoverflow) |
CH (1) | CH515126A (enrdf_load_stackoverflow) |
DE (2) | DE1611372B1 (enrdf_load_stackoverflow) |
FR (1) | FR1584122A (enrdf_load_stackoverflow) |
GB (1) | GB1210159A (enrdf_load_stackoverflow) |
NL (1) | NL6811259A (enrdf_load_stackoverflow) |
SE (1) | SE348409B (enrdf_load_stackoverflow) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941368A (en) * | 1973-10-12 | 1976-03-02 | Compagnie Generale De Radiologie | Film transport mechanism |
US4544149A (en) * | 1982-02-04 | 1985-10-01 | Diebold, Incorporated | Multi-picker mechanism for automatic banking machines |
US4548397A (en) * | 1982-12-16 | 1985-10-22 | Ruenzi Kurt | Single-sheet separating apparatus, particularly for use with office machines |
US4573673A (en) * | 1981-02-10 | 1986-03-04 | Frama Ag | Feed mechanism for individual flat articles |
US4615517A (en) * | 1984-09-24 | 1986-10-07 | Ferag Ag | Apparatus for placing flat cover elements, preferably cover sheets, on stacks of flat articles, preferably printed products |
US4616816A (en) * | 1984-09-24 | 1986-10-14 | Ferag Ag | Apparatus for superposing flexible flat structures, especially sheets and signatures, and method of using such apparatus |
US5181711A (en) * | 1990-09-28 | 1993-01-26 | Oce-Nederland, B.V. | Device for discharging sheets from the bottom of a stack |
US5195738A (en) * | 1989-06-30 | 1993-03-23 | National Computer Systems, Inc. | Single sheet picking and transport mechanism |
US5377970A (en) * | 1990-04-20 | 1995-01-03 | Canon Kabushiki Kaisha | Sheet feeding apparatus with reduced vibration separator |
US5383569A (en) * | 1992-05-15 | 1995-01-24 | Muto Pure Chemicals Company Ltd. | Automatic delivery apparatus for prepared slide glass sheets |
WO1998052855A1 (en) * | 1997-05-22 | 1998-11-26 | Troy Systems, Inc. | Add-on modular paper mover |
CN114555497A (zh) * | 2019-10-28 | 2022-05-27 | 柯尼格及包尔公开股份有限公司 | 具有至少一个单张纸摞放装置的单张纸加工机和用于单张纸摞放的方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039180A (en) * | 1976-10-14 | 1977-08-02 | Bell & Howell Company | Sheet feeding apparatus |
DE3047278A1 (de) * | 1980-12-16 | 1982-07-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | "vereinzelungsvorrichtung fuer aufzeichnungstraeger" |
US4544150A (en) * | 1984-02-22 | 1985-10-01 | Pitney Bowes Inc. | Document feeder |
DE69016108T2 (de) * | 1989-06-30 | 1995-05-18 | Nat Computer Systems Inc | Einzelblattaufnahme- und -transporteinrichtung. |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2108799A (en) * | 1935-09-30 | 1938-02-22 | Davidson William Ward | Blank feeder and ejector |
US2887316A (en) * | 1955-06-23 | 1959-05-19 | Frederic S Tobey | Mechanism and method for delivering thin flat elements singly from a stack of the same |
US2969980A (en) * | 1958-09-08 | 1961-01-31 | Miehle Goss Dexter Inc | Vacuum slow down device for sheet delivery mechanism |
US3025051A (en) * | 1960-11-02 | 1962-03-13 | Ibm | Sheet handling apparatus and method |
US3044770A (en) * | 1960-02-02 | 1962-07-17 | Grinten Chem L V D | Sheet feeding device |
US3052465A (en) * | 1956-12-31 | 1962-09-04 | Ibm | Sheet separating apparatus |
US3131594A (en) * | 1960-04-04 | 1964-05-05 | Xerox Corp | Image scanning apparatus |
US3224761A (en) * | 1962-06-29 | 1965-12-21 | Jagenberg Werke Ag | Method and apparatus for depositing sheets ejected by a cross cutter |
US3234359A (en) * | 1958-11-28 | 1966-02-08 | Xerox Corp | Record card scanning apparatus |
US3419264A (en) * | 1967-04-21 | 1968-12-31 | Xerox Corp | Document handling system |
US3420519A (en) * | 1966-12-23 | 1969-01-07 | Gen Electric | Card-stacking mechanism |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH25022A (fr) * | 1901-07-09 | 1903-03-31 | Julius Hallberg Ernst | Maschine destinée à prendre l'une après l'autre des feuilles de papier sur un tas et à les amener à une machine quelconque |
US2359852A (en) * | 1941-07-21 | 1944-10-10 | Addressograph Multigraph | Printing machine |
FR1404892A (fr) * | 1964-08-11 | 1965-07-02 | Minnesota Mining & Mfg | Appareil d'alimentation pour fournir séparément des feuilles de papier |
-
1967
- 1967-08-11 CH CH1132767A patent/CH515126A/de not_active IP Right Cessation
- 1967-10-13 DE DE19671611372D patent/DE1611372B1/de active Pending
-
1968
- 1968-08-02 GB GB37090/68A patent/GB1210159A/en not_active Expired
- 1968-08-06 US US750591A patent/US3583696A/en not_active Expired - Lifetime
- 1968-08-08 FR FR1584122D patent/FR1584122A/fr not_active Expired
- 1968-08-08 SE SE10687/68A patent/SE348409B/xx unknown
- 1968-08-08 NL NL6811259A patent/NL6811259A/xx unknown
- 1968-08-09 BE BE719317D patent/BE719317A/xx unknown
- 1968-08-09 DE DE19681781014 patent/DE1781014A1/de active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2108799A (en) * | 1935-09-30 | 1938-02-22 | Davidson William Ward | Blank feeder and ejector |
US2887316A (en) * | 1955-06-23 | 1959-05-19 | Frederic S Tobey | Mechanism and method for delivering thin flat elements singly from a stack of the same |
US3052465A (en) * | 1956-12-31 | 1962-09-04 | Ibm | Sheet separating apparatus |
US2969980A (en) * | 1958-09-08 | 1961-01-31 | Miehle Goss Dexter Inc | Vacuum slow down device for sheet delivery mechanism |
US3234359A (en) * | 1958-11-28 | 1966-02-08 | Xerox Corp | Record card scanning apparatus |
US3044770A (en) * | 1960-02-02 | 1962-07-17 | Grinten Chem L V D | Sheet feeding device |
US3131594A (en) * | 1960-04-04 | 1964-05-05 | Xerox Corp | Image scanning apparatus |
US3025051A (en) * | 1960-11-02 | 1962-03-13 | Ibm | Sheet handling apparatus and method |
US3224761A (en) * | 1962-06-29 | 1965-12-21 | Jagenberg Werke Ag | Method and apparatus for depositing sheets ejected by a cross cutter |
US3420519A (en) * | 1966-12-23 | 1969-01-07 | Gen Electric | Card-stacking mechanism |
US3419264A (en) * | 1967-04-21 | 1968-12-31 | Xerox Corp | Document handling system |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941368A (en) * | 1973-10-12 | 1976-03-02 | Compagnie Generale De Radiologie | Film transport mechanism |
US4573673A (en) * | 1981-02-10 | 1986-03-04 | Frama Ag | Feed mechanism for individual flat articles |
US4544149A (en) * | 1982-02-04 | 1985-10-01 | Diebold, Incorporated | Multi-picker mechanism for automatic banking machines |
US4548397A (en) * | 1982-12-16 | 1985-10-22 | Ruenzi Kurt | Single-sheet separating apparatus, particularly for use with office machines |
US4615517A (en) * | 1984-09-24 | 1986-10-07 | Ferag Ag | Apparatus for placing flat cover elements, preferably cover sheets, on stacks of flat articles, preferably printed products |
US4616816A (en) * | 1984-09-24 | 1986-10-14 | Ferag Ag | Apparatus for superposing flexible flat structures, especially sheets and signatures, and method of using such apparatus |
US5195738A (en) * | 1989-06-30 | 1993-03-23 | National Computer Systems, Inc. | Single sheet picking and transport mechanism |
US5377970A (en) * | 1990-04-20 | 1995-01-03 | Canon Kabushiki Kaisha | Sheet feeding apparatus with reduced vibration separator |
US5181711A (en) * | 1990-09-28 | 1993-01-26 | Oce-Nederland, B.V. | Device for discharging sheets from the bottom of a stack |
US5383569A (en) * | 1992-05-15 | 1995-01-24 | Muto Pure Chemicals Company Ltd. | Automatic delivery apparatus for prepared slide glass sheets |
WO1998052855A1 (en) * | 1997-05-22 | 1998-11-26 | Troy Systems, Inc. | Add-on modular paper mover |
CN114555497A (zh) * | 2019-10-28 | 2022-05-27 | 柯尼格及包尔公开股份有限公司 | 具有至少一个单张纸摞放装置的单张纸加工机和用于单张纸摞放的方法 |
CN114555497B (zh) * | 2019-10-28 | 2024-03-29 | 柯尼格及包尔公开股份有限公司 | 具有至少一个单张纸摞放装置的单张纸加工机和用于单张纸摞放的方法 |
Also Published As
Publication number | Publication date |
---|---|
BE719317A (enrdf_load_stackoverflow) | 1969-01-16 |
DE1611372B1 (de) | 1971-08-26 |
SE348409B (enrdf_load_stackoverflow) | 1972-09-04 |
FR1584122A (enrdf_load_stackoverflow) | 1969-12-12 |
DE1781014A1 (de) | 1970-09-10 |
CH515126A (de) | 1971-11-15 |
GB1210159A (en) | 1970-10-28 |
NL6811259A (enrdf_load_stackoverflow) | 1969-02-13 |
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