GB2034608A - Glue application to corrugated pasteboard web - Google Patents
Glue application to corrugated pasteboard web Download PDFInfo
- Publication number
- GB2034608A GB2034608A GB7938850A GB7938850A GB2034608A GB 2034608 A GB2034608 A GB 2034608A GB 7938850 A GB7938850 A GB 7938850A GB 7938850 A GB7938850 A GB 7938850A GB 2034608 A GB2034608 A GB 2034608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glue
- regulating
- web
- roll
- doctor
- 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.)
- Withdrawn
Links
- 239000003292 glue Substances 0.000 title claims abstract description 80
- 230000001105 regulatory effect Effects 0.000 claims abstract description 33
- 238000007598 dipping method Methods 0.000 claims abstract description 5
- 230000007547 defect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2818—Glue application specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Apparatus is provided for regulating the quantity of the glue application to a moving corrugated pasteboard web, comprising a glue vessel (2), a rotating glue applicator roll (1) dipping into the glue vessel, against which roll the moving web (10) to be glued is pressed, and a pre-regulating adjustable doctor blade (4) extending over the whole width of the roll for regulating the quantity of the glue to be transferred to the web. In addition to blade (4) there is present a further adjustable doctor blade (5) extending over the whole width of the roll, for final regulation of the glue application. <IMAGE>
Description
SPECIFICATION
Apparatus for regulating the quantity of the glue application to a moving web, especially a corrugated pasteboard web
The invention relates to an apparatus for regulating the quantity of the glue application to a moving web, especially a corrugated pasteboard web, having a glue vessel, a rotating glue applicator roll which dips into the glue vessel and against which the moving web to be glued is pressed, and an adjustable doctor extending over the whole width of the roll for regulating the quantity of glue to be transferred to the web.
Glueing mechanisms consist essentially of the glue applicator roll and a glue-filled glue tank. The glue applicator roll dips into the glue and transfers it on to the moving web, for example the corrugation crests of the corrugated web of a corrugated pasteboard which rests on the glue applicator roll. In order to obtain a glue application film which is as thin and constant as possible, for glue quantity-regulation a scraper roll is known which forms a quantityregulating gap with the glue applicator roll and with which there co-operates a scraper. It is disadvantageous that the size of the glue gap cannot be adjusted constantly with sufficient precision. Such scraper rolls have defects in truth of rotation caused in manufacture which make themselves troublesomely noticeable especially when relatively small glue gaps are to be set.However small glue gaps are desired in order to bring as little moisture as possible on to the moving web, for which purpose then glues with a high proportion of solid substance are to be used. Moreover due to the wedge-shaped gap effect forces occur which press the glue applicator roll and scraper roll apart. This is a further source of defects for the desired small quantity-regulating gap to be set.
It is already known from Ger. Pub. Sp. 2508 119to use in place of a quantity-regulating roll a quantityregulating doctor which is placed obliquely of the surface of the glue applicator roll and extends over the whole length of the latter. It is disadvantageous that with such a quantity-regulating doctor alone it is not possible to set the desired very small regulating gaps, because the back pressure of the glue to be scraped off and the wedge-shaped gap effect are too great.
The invention is based upon the problem of improving the last-described apparatus for the regulation of quantity of the glue application to such effect that smaller glue gaps than hitherto can be used.
According to the invention there is provided an apparatus for regulating the quantity of the glue application to a moving web, comprising a glue vessel, a rotating glue applicator roll dipping into the glue vessel, against which roll the moving web to be glued is pressed, a pre-regulating adjustable doctor extending overthe whole width of the roll for regulating the quantity of the glue to be transferred to the web, and a further adjustable doctor for final regulation of the glue application.
The invention offers the advantage that as consequence of the smallersettable glueing gaps glues with high proportion of solid substance are usable so that the moisture transferred to the paper web becomes less. In the one solution the two effective regulating doctors also ensure that the glue film is uniform and has a constantsettable thickness. The pre-regulating doctor in this case takes over the coarse pre-regulation of the glue film, holding back the major part of the excess quantity of glue which is situated on the glue applicator roll. The final regulation doctor then subsequently takes over the fine regulation of the glue film. Defects in truth of rotation as in the use of regulating rolls are eliminated. Defects caused by inaccuracies in manufacture are considerably reduced.Moreover the defects caused by the wedge gap effect are also eliminated.
In the other solution it is essential that the regulating doctor stands approximately perpendicular to the surface of the glue applicator roll, so that no forces occur which would act in the radial direction and involve pressing away of this regulating doctor.
The invention will be described in greater detail below with reference to an example of embodiment illustrated in the drawing wherein:
Figure 1 shows a diagrammatic lateral elevation of a glueing mechanism for a web of corrugated pasteboard;
Figure 2 shows a lateral elevation of a detail of the glueing mechanism and
Figure 3 shows a diagrammatic front view of the glue applicator roll.
The apparatus for applying glue consists of the glue applicator roll 1, the glue tank 2 with the glue 3 contained therein and of a pre-regulating doctor 4 and a final regulating doctor 5 which extend over the whole length of the glue applicator roll and cooperate therewith. Both doctors 4, 5 are adjustable in relation to the surface of the applicator roll 1 by adjustment drive systems 6, 7. The glue gaps 8,9 are adjustable independently of one another.
A corrugated pasteboard web 10 having a cover coating on one side is fed to a roll 11 and partially loops around it. The applicator roll 1 dipping into the glue 3 transfers the glue on to the corrugation crests 12 of the corrugated pasteboard web 10 which rests on the roll 11.
In the amended form of embodiment according to
Figure 2 the doctors 4, 5 are firmly connected by means of a bar 13with a tube 14. Thetube 14 is mounted for pivoting about its longitudinal axis. The tube 14 can be pivoted in the indicated arrow direction for example by an adjusting drive system 15through a spindle 16. By pivoting ofthetube 14 the glue gaps 8, 9 of the doctors 4,5 can be adjusted initially in common. For more precise setting of the glue gap 9 of the doctor 5 an additional fine adjustability is provided for this doctor. For this purpose the doctor 5 is connected with the bar 13 by means of adjusting screws 17 and adjusting nuts 17'.
Thus the doctor 5 is finely adjustable perpendicularly of the surface of the glue applicator roll 1. By pivoting of the tube 14 it is possible for the doctors 4, 5 to be lifted quickly away from the applicator roll 1 in common.
The pre-regulating doctor 4 extends obliquely and almost tangentially to the surface of the applicator roll 1. It is connected with the bar 13 and an attachment 19 of the tube 14 by means of screws 18.
The pre-regulating doctor 4 has the task of holding backthe major part of the excess quantity of glue which adheres to the surface of the glue applicator roll 1. Thus it relieves the load upon the final regulating doctor 5, upon which therefore there acts only a slight pressure build-up of the glue. The doctor 4 also holds back dirt particles and glue lumps. For these reasons the glue gap 9 between the fine regulating doctor 5 and the applicator roll 1 is maintained very precisely during operation.
The pre-regulating doctor 4 arranged obliquely of the roll surface effects a smoothing of the glue film 16. This oblique position of the doctor 4 is not absolutely necessary. The doctor 4 can be arranged perpendicularly of the roll surface, just like the doctor 5.
In order to eliminate the susceptibility to dirt of this scraper device the surface of the glue applicator roll 1 is given a dirt-cleaning profile. For this purpose an oblique fluting 20 according to Figure 3 is advisable above all. Due to the fact that the grooves 21 extend in helical form around the glue applicator roll, dirt particles are conveyed in the direction of the one edge of the roll so that constant self-cleaning of the surface of the roll is guaranteed. Furthermore such an oblique fluting 20 can be manufactured more precisely than detent profiles usual hitherto.
Claims (10)
1. Apparatus for regulating the quantity of the glue application to a moving web, especially a corrugated pasteboard web, comprising a glue vessel, a rotating glue applicator roll dipping into the glue vessel, against which roll the moving web to be glued is pressed, and an adjustable doctor extending over the whole width of the roll for regulating the quantity of the glue to be transferred to the web, characterised in that in addition to a pre-regulating doctor there is present a further adjustable doctor extending over the whole width of the roll, for final regulation of the glue application.
2. Apparatus as claimed in claim 1, wherein the final regulating doctor is arranged approximately perpendicular to the surface of the glue applicator roll.
3. Apparatus as claimed in claim 1 or 2, wherein the pre-regulating doctor is arranged obliquely of the surface of the glue applicator roll.
4. Apparatus as claimed in claim 1, 2 or 3, wherein the pre-regulating doctor and the final regulating doctor are made separately adjustable.
5. Apparatus as claimed in any one of claims 1 to 4, wherein both doctors are arranged on an adjustable carrier.
6. Apparatus as claimed in claim 5, wherein the carrier is arranged for pivoting about its longitudinal axis.
7. Apparatus for regulating the quantity of the glue application to a moving web, especially a corrugated pasteboard web, comprising a glue vessel, a rotating glue applicator roll dipping into the glue vessel, against which roll the moving web to be glued is pressed, and an adjustable doctor extending over the whole width of the roll for regulating the quantity of the glue to be transferred to the web, wherein the pre-regulating doctor is arranged approximately perpendicular to the surface of the glue applicator roll.
8. Apparatus as claimed in any one of claims 1 to 7, wherein the glue applicator roll possesses a fluting having a helical course.
9. Apparatus as claimed in any one of claims 1 to 8, wherein the moving web is a corrugated pasteboard web.
10. Apparatus for regulating the quantity of the glue application to a moving web, especially a corrugated pasteboard web, substantially as described with reference to Figure 1 or Figure 2 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782851008 DE2851008A1 (en) | 1978-11-24 | 1978-11-24 | DEVICE FOR DOSING THE GLUE APPLICATION ON A RUNNING RAIL, IN PARTICULAR CORRUGATED PAPER RAIL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2034608A true GB2034608A (en) | 1980-06-11 |
Family
ID=6055513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7938850A Withdrawn GB2034608A (en) | 1978-11-24 | 1979-11-09 | Glue application to corrugated pasteboard web |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5574856A (en) |
| BE (1) | BE880252A (en) |
| BR (1) | BR7907622A (en) |
| DE (1) | DE2851008A1 (en) |
| ES (1) | ES8100910A1 (en) |
| FR (1) | FR2442081A1 (en) |
| GB (1) | GB2034608A (en) |
| IT (1) | IT1203258B (en) |
| NL (1) | NL7908523A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2191514A (en) * | 1986-04-22 | 1987-12-16 | Truetzschler & Co | Adjustable separator blade assembly for a textile machine |
| EP0362423A1 (en) * | 1986-08-11 | 1990-04-11 | Consolidated Papers, Inc. | Method of and apparatus for controlling application of glue to defined areas |
| EP0599062A1 (en) * | 1992-11-25 | 1994-06-01 | PETERS MASCHINENFABRIK GmbH | Apparatus for limiting adhesive width in a continuous laminating machine |
| WO1996026835A1 (en) * | 1995-02-27 | 1996-09-06 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Corrugated cardboard manufacturing process and device |
| WO2000062940A1 (en) * | 1999-04-14 | 2000-10-26 | Dorus Klebetechnik Gmbh + Co. Kg | Device for applying an adhesive |
| GB2350806A (en) * | 1999-04-24 | 2000-12-13 | John Madeley Machinery Ltd | Coating apparatus |
| US6710566B2 (en) * | 2001-10-01 | 2004-03-23 | Chicago Industrial Group, Inc. | Method and apparatus for servo glue gap control |
| EP1481793A2 (en) * | 2003-05-31 | 2004-12-01 | BHS Corrugated Maschinen-und Anlagenbau GmbH | Method and glueing device for continuously applying an adhesive on webs |
| US10061200B2 (en) | 2015-05-27 | 2018-08-28 | Landa Labs (2012) Ltd. | Imaging device |
| CN108973248A (en) * | 2018-09-20 | 2018-12-11 | 华蓥市职业教育培训中心 | A kind of Corrugating Machine paste wheel apparatus that can accurately adjust gluing wide cut and inclination angle |
| CN109225748A (en) * | 2018-11-29 | 2019-01-18 | 江苏远华轻化装备有限公司 | A kind of scraper mechanism that band quantitatively glues |
| US10336059B2 (en) | 2015-05-27 | 2019-07-02 | Landa Labs (2012) Ltd. | Printing method and apparatus for coating selected regions of a substrate with a film |
| US10583455B2 (en) | 2015-05-27 | 2020-03-10 | Actega Metal Print Gmbh | Coating apparatus |
| CN113085395A (en) * | 2021-03-30 | 2021-07-09 | 贵州送变电有限责任公司 | Wisdom storage management platform with developments management and control system |
| US11701684B2 (en) | 2015-05-27 | 2023-07-18 | Landa Labs (2012) Ltd. | Method for coating a surface with a transferable layer of thermoplastic particles and related apparatus |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3113980C2 (en) * | 1981-04-07 | 1984-05-10 | Jagenberg-Werke AG, 4000 Düsseldorf | Gluing device for a labeling machine |
| DE3149295C2 (en) * | 1981-12-12 | 1984-02-09 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Device for evenly distributing a highly viscous liquid |
| DE3927365A1 (en) * | 1989-08-19 | 1991-02-21 | Hans Amoser | Applicator roller for coating low viscosity adhesive on foil - carries specified intersecting spiral grooves on its surface |
| DE4036726C2 (en) * | 1990-11-17 | 2001-06-28 | Hauni Werke Koerber & Co Kg | Coating device |
| DE19500967C2 (en) * | 1995-01-14 | 2003-07-10 | Schaaff & Meurer Gmbh | Device for applying liquids |
| DE102004032568B4 (en) * | 2004-07-05 | 2007-09-20 | Jakob Weiß & Söhne Maschinenfabrik GmbH | Doctor blade and doctor blade method |
| JP5590941B2 (en) * | 2010-03-31 | 2014-09-17 | 三菱重工印刷紙工機械株式会社 | Method and apparatus for gluing cardboard manufacturing apparatus |
| DE202012012709U1 (en) * | 2012-02-02 | 2013-11-08 | Olbrich Gmbh | Coating system for flexible webs |
| CN104494250B (en) * | 2014-12-18 | 2017-04-26 | 杭州临安天宏电讯材料有限公司 | Hot melt polyester belt and preparation method thereof |
| CN105214889A (en) * | 2015-08-28 | 2016-01-06 | 张家港飞腾铝塑板股份有限公司 | A kind of multicolor roller mechanism |
| CN105107685A (en) * | 2015-08-28 | 2015-12-02 | 张家港飞腾铝塑板股份有限公司 | Adjustable support for edge scraping device for multicolor coating roller |
| CN109663705B (en) * | 2019-01-28 | 2023-08-15 | 昆山鸣朋纸业有限公司 | Corrugated paper gluing machine and gluing process |
| CN115958840B (en) * | 2022-12-29 | 2023-08-29 | 广州科盛隆纸箱包装机械有限公司 | Corrugated paper composite equipment for corrugated paper box processing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB387460A (en) * | 1931-12-02 | 1933-02-09 | Edward Gallant Lucas | Improvements in or relating to machines for applying gum or other liquid adhesive substances to sheet materials such as paper, card, envelope blanks and the like |
| FR1488484A (en) * | 1965-07-21 | 1967-11-02 | ||
| DE1806001A1 (en) * | 1967-11-02 | 1969-06-12 | Marple Printing Company Ltd | Method and apparatus for making a layered composite web |
| US3659553A (en) * | 1970-10-08 | 1972-05-02 | Phillip E Tobias | Adjusting doctor blade arrangement for use with a drum applicator |
| US3718115A (en) * | 1971-01-27 | 1973-02-27 | Int Paper Co | Adhesive application system |
| US3788270A (en) * | 1972-03-03 | 1974-01-29 | Brackett Stripping Machine Co | Glue applying device |
| DE2508119C2 (en) * | 1975-02-25 | 1977-04-21 | Bhs Bayerische Berg | METHOD AND DEVICE FOR DOSING THE GLUE APPLICATION ON A CURRENT WEB, IN PARTICULAR CORRUGATED CARDBOARD |
| FR2358205A1 (en) * | 1976-07-13 | 1978-02-10 | Mecalix Enduction | Corrugated cardboard sheet web impregnating drum - has baffles in distributor bath and adjustable feed and delivery rollers |
-
1978
- 1978-11-24 DE DE19782851008 patent/DE2851008A1/en not_active Withdrawn
-
1979
- 1979-11-09 GB GB7938850A patent/GB2034608A/en not_active Withdrawn
- 1979-11-20 IT IT50869/79A patent/IT1203258B/en active
- 1979-11-21 JP JP15195079A patent/JPS5574856A/en active Pending
- 1979-11-22 FR FR7928797A patent/FR2442081A1/en active Pending
- 1979-11-22 NL NL7908523A patent/NL7908523A/en not_active Application Discontinuation
- 1979-11-23 BR BR7907622A patent/BR7907622A/en unknown
- 1979-11-23 ES ES486292A patent/ES8100910A1/en not_active Expired
- 1979-11-26 BE BE0/198280A patent/BE880252A/en unknown
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2191514A (en) * | 1986-04-22 | 1987-12-16 | Truetzschler & Co | Adjustable separator blade assembly for a textile machine |
| US4805268A (en) * | 1986-04-22 | 1989-02-21 | Trutzschler Gmbh & Co. Kg | Separating knife assembly for a carding machine or the like |
| GB2191514B (en) * | 1986-04-22 | 1989-12-06 | Truetzschler Gmbh & Co Kg | Adjustable separator blade assembly for a textile machine |
| EP0362423A1 (en) * | 1986-08-11 | 1990-04-11 | Consolidated Papers, Inc. | Method of and apparatus for controlling application of glue to defined areas |
| EP0599062A1 (en) * | 1992-11-25 | 1994-06-01 | PETERS MASCHINENFABRIK GmbH | Apparatus for limiting adhesive width in a continuous laminating machine |
| US5518573A (en) * | 1992-11-25 | 1996-05-21 | Peters Maschinenfabrik Gmbh | Device to limit the glue width on a glue applying roll used in applying glue to a web forming a stratified web-like workpiece |
| WO1996026835A1 (en) * | 1995-02-27 | 1996-09-06 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Corrugated cardboard manufacturing process and device |
| WO2000062940A1 (en) * | 1999-04-14 | 2000-10-26 | Dorus Klebetechnik Gmbh + Co. Kg | Device for applying an adhesive |
| GB2350806A (en) * | 1999-04-24 | 2000-12-13 | John Madeley Machinery Ltd | Coating apparatus |
| GB2350806B (en) * | 1999-04-24 | 2003-08-20 | John Madeley Machinery Ltd | A method of coating a polyethylene substrate |
| US6710566B2 (en) * | 2001-10-01 | 2004-03-23 | Chicago Industrial Group, Inc. | Method and apparatus for servo glue gap control |
| EP1481793A2 (en) * | 2003-05-31 | 2004-12-01 | BHS Corrugated Maschinen-und Anlagenbau GmbH | Method and glueing device for continuously applying an adhesive on webs |
| EP1481793A3 (en) * | 2003-05-31 | 2005-08-17 | BHS Corrugated Maschinen-und Anlagenbau GmbH | Method and glueing device for continuously applying an adhesive on webs |
| US10906064B2 (en) | 2015-05-27 | 2021-02-02 | Actega Metal Print Gmbh | Printing system and method |
| US10780689B2 (en) * | 2015-05-27 | 2020-09-22 | Landa Labs (2012) Ltd. | Method and apparatus for coating selected regions of a substrate with a film |
| US11701684B2 (en) | 2015-05-27 | 2023-07-18 | Landa Labs (2012) Ltd. | Method for coating a surface with a transferable layer of thermoplastic particles and related apparatus |
| US10336059B2 (en) | 2015-05-27 | 2019-07-02 | Landa Labs (2012) Ltd. | Printing method and apparatus for coating selected regions of a substrate with a film |
| US10583455B2 (en) | 2015-05-27 | 2020-03-10 | Actega Metal Print Gmbh | Coating apparatus |
| US10591822B2 (en) | 2015-05-27 | 2020-03-17 | Landa Labs (2012) Ltd. | Imaging device |
| US10751750B2 (en) | 2015-05-27 | 2020-08-25 | Actega Metal Print Gmbh | Coating apparatus with donor surface, application device, and surplus extraction system |
| US11679408B2 (en) | 2015-05-27 | 2023-06-20 | Actega Metal Print Gmbh | Printing system and method |
| US10061200B2 (en) | 2015-05-27 | 2018-08-28 | Landa Labs (2012) Ltd. | Imaging device |
| US10960432B2 (en) | 2015-05-27 | 2021-03-30 | Landa Labs (2012) Ltd. | Apparatus for coating a surface with a transferable layer of thermoplastic particles, and related methods |
| US10981191B2 (en) | 2015-05-27 | 2021-04-20 | Actega Metal Print Gmbh | Metal printed constructions |
| CN108973248A (en) * | 2018-09-20 | 2018-12-11 | 华蓥市职业教育培训中心 | A kind of Corrugating Machine paste wheel apparatus that can accurately adjust gluing wide cut and inclination angle |
| CN109225748A (en) * | 2018-11-29 | 2019-01-18 | 江苏远华轻化装备有限公司 | A kind of scraper mechanism that band quantitatively glues |
| CN109225748B (en) * | 2018-11-29 | 2024-04-02 | 江苏远华轻化装备有限公司 | Scraper mechanism with quantitative rubberizing function |
| CN113085395A (en) * | 2021-03-30 | 2021-07-09 | 贵州送变电有限责任公司 | Wisdom storage management platform with developments management and control system |
Also Published As
| Publication number | Publication date |
|---|---|
| IT7950869A0 (en) | 1979-11-20 |
| JPS5574856A (en) | 1980-06-05 |
| NL7908523A (en) | 1980-05-28 |
| ES486292A0 (en) | 1980-12-01 |
| BE880252A (en) | 1980-03-17 |
| IT1203258B (en) | 1989-02-15 |
| ES8100910A1 (en) | 1980-12-01 |
| FR2442081A1 (en) | 1980-06-20 |
| DE2851008A1 (en) | 1980-05-29 |
| BR7907622A (en) | 1980-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |