CA1170025A - Hooked fabric fastener tape and method of producing same - Google Patents
Hooked fabric fastener tape and method of producing sameInfo
- Publication number
- CA1170025A CA1170025A CA000390010A CA390010A CA1170025A CA 1170025 A CA1170025 A CA 1170025A CA 000390010 A CA000390010 A CA 000390010A CA 390010 A CA390010 A CA 390010A CA 1170025 A CA1170025 A CA 1170025A
- Authority
- CA
- Canada
- Prior art keywords
- foundation structure
- fastener tape
- loops
- hook
- threads
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0023—Woven or knitted fasteners
- A44B18/0038—Male or hook elements
Abstract
ABSTRACT OF THE DISCLOSURE
A hooked fabric fastener tape has on one of opposite surfaces of a foundation structure a number of hook-shaped material engaging elements and stems which have been produced in pair from loops on the foundation structure. The respective free ends of the hook-shaped material engaging elements and the stems are displaced angularly away from one another as viewed from the general plane of the foundation structure for easy hooking engagement with cooperating loops of a mating looped fabric fastener tape. A method of producing such a hooked fabric fastener tape is also provided.
A hooked fabric fastener tape has on one of opposite surfaces of a foundation structure a number of hook-shaped material engaging elements and stems which have been produced in pair from loops on the foundation structure. The respective free ends of the hook-shaped material engaging elements and the stems are displaced angularly away from one another as viewed from the general plane of the foundation structure for easy hooking engagement with cooperating loops of a mating looped fabric fastener tape. A method of producing such a hooked fabric fastener tape is also provided.
Description
. I ~ 7(30~5 BACKGROUND OF THE INVENT ON
~ield of the Invention:
. .. _ .... .
The present invention relates generally to surface type fasteners known as hook-and-loop fasteners~ and more particularly to a fabric fastener tape carrying on its one surface a number of hook-shaped material engaging elemen~s and a method of pro-ducing ~uch a hooked fabric fastener tape.
Prior Art:
According to a known method, a hooked fabric fastener tape of the type described is produced from a terry or uncut pile fabric carrying on its one surface a number of loops raised ~rom the one surface, each o the loops havins a pair of spaced leg sections and a head section interconnecting the leg sections.
Each loop is cut open or severed at one of the leg sec~ions thereof to produce, on one hand, a hook-shaped material engaging element and, on the other hand, a stem. The prior art hooked fabric fastener tape is disadvantageous in that after the loops ha~e been cut open, the stems remain on the fastener tape adjacent to the corresponding hook shaped material engaging elements in confrontin~ relation tb orsubstantially in vertical alignment with the respecti~e free ends thereof. The stems are liable to hinder cooperating loops on a mating looped fabric fastener tape from being introduced into and hooked by the hook-shaped material engaging elements as the two fastener tapes are pressed into face-to-face contact together. As a result, the possibility of hooking between hooks and loops, and hence the ~irmness of engagement of a hook-and-loop fastener is considerably decreased. In order to displace the hook-shaped material engaging elements away from the stems, the prior art method requires an additional treatment by a raising machine or another complicate and expensive device.
, 1 J 7n~,s It is an object ofthe invention to provide a hooked fabric fastener tape for hook-and-loop fasteners which can adhere to or ~ngage with a cooperating looped fabrlc fastener tape with an increased degree of firmness.
Another o~ject of the invention is to provîde a hooked fabric fastener tape having hook-shaped material engaging elements which can hook cooperating loops of a mating looped fa~ric fastener reliably without causing mis-en~a~e~ent therewith.
A further object of the invention is to provide a method which produces such a hooked fabxic fastener tape simply and less costly.
SUMMARY OF THE INVENTION
_ _ , A hookad fa~ric fastener tape has on one of opposite surfaces of a foundat;on structure a num~er of hook shaped material engaging elements and stems which have been produced in pair from loops on the foundation structure. The respective free ends o~ the hook-shaped material engaging elements and the stems are displaced angularly away i-rom one another as viewed fxom the general plane of the foundation structure for easy hooking engagement with cooperating loops of a mating looped fabric fastener tape.
According to a method of the present invention, a plurali-ty of warp threads of synthetic resin material are woven, while being exerted thereon a torque, together with a plurality of foundation weft and warp threads so as to form loops with the synthetic resin warp threads raised from the so woven foundation structure, each of the loop having a pair of leg sections and a head section interconnecting the legs. The loops are heated at a temperature which causes the loops to retain their shape to form raised pile th~eads while allowing the loops to retain ~ ~7(~O~ti ~n internal torsional stress stored during the weaving operation.
Upon cutting the loops at respective ones of the legs, hook-shaped material engaging elements and stems produced from the respective loops are allowed to displace, due to the internal torsional stress stored therein, angularly away from one another as viewed from the general plane of the foundation structure.
The abo~e and other objects, advantages and features of the present invention will become apparent from the followi`ng description of a pre~erred embodiment taken in conjunction with the accompanying drawings, in which:
BRIEF DESCRIPTION OF . THE DRAWINGS
FIG. 1 is a fra~mentary diagrammatic front elevational view of loops on a foundation structure befoxe being converted into a hooked fabric fastener tape according to the invention;
FIG. 2 is a side elevational view of FIG. 1;
FIGS. 3 and 4 are views similar ~o FIG5. 1 and 2, respec-ti~ely, showing a hooked fa~ric fastener tape having on one of opposîte surfaces of a foundation structure a plurality of hook-shaped material engaging elements and stems which have ~een produced ~y cutting the loops at respective one leg sections thereof shown in FIGS. 1 and 2, according to the present inven-tion; and FIG. 5 is a plan view o~ FIG. 3.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENT
~ eferring now to the drawing, wherein like reference characters designate identical or corresponding parts throughout the several views, and more particularly to FIGS. 1 and 2, there is shown an uncut pile or looped fabric fastener tape 10 produced in accordance with the present invention. The looped fabric fastener tape 10 încludes a foundation structure 11 constituted ~ 1 7 ~ O ~ 5 by a weft thread and a plurality of first warp thr~ads woven with the weft thread (these threads being not shown for clarifi- I
cation).
The fastener tape 10 also includes on one o~ opposite surfaces of the foundation structure 11 a number of loops 12 formed with a plurality of second warp threads woven into the foundation structure during the weaving operation of the same in a loom of the general type employed in weaving vel~et ribbon.
Each of the loops 12 has a pair of leg sections 18,19 and a head section 20 interconnectins the leg sections 18,19. The second warp threads preferably are thermoplastic monofilaments made of a synthetic resin material, such as nylon or Gther material capable of being set by heat into a predetermined shape.
The second warp threads are woven, while exerting thereon a torque or torsional load, together with the foundation weft and warp threads, with the result that the loops 12 formed with thus twisted warp threads are twisted correspondingly as shown in FIG~ 20 Exertion of the ~orque or twist may be done either as the second warp threads a:re supplied into the loom for formation of the loops 12 or as they are wound on bobbins, with the a~d of a suitable torque excertion means.
q`he loops 12 are heated at a temperature which causes the loops 12 to retain their shape to form raised pile threads ~hile allowing the same to retain an internal torsional stresses stored during the weaving operation. Th~ heating temperature of the loops 12 is preferably set at a relatively low temperature in a ranye wi~hin which the second warp threads of thermoplastic synthetic resin material have the thermoplasticity.
Each of the loops 12 is then cut open or severed at one 18 of the respective leg sections 18,19 to produce, on one hand, : _5- :
1 3 7~0~ `
a hook-shaped material engaging element 13 formed jointly with the other leg section 19~ the head section 20 and a part of the one leg section 18 and, on the other hand, a stem 14 formed with the reminder of the cut one leg section 18 and constituting a dressed nap, whereupon the hook-shaped material engaging element and the stem 13,14 are allowed to displace, due to the internal torsional stress stored therein, angularly away from each other as viewed from the general plane of the foundation structure 11, as shown in FIGS. 3 to 5. Thus, a large opening is provided between the free end of the hook-shaped element 13 and the stem 14 for easy reception of a corresponding loop 16 on a mating looped fabric fastener tape 17 (shown by phantom lines in FIG.`3). A hooked fabric fastener tape 15 now converted from the looped fabric fastener tape lO has the hook-shaped material engaging elements 13 which allow the cooperating loops 16 on the looped fabric fastener tape 17 to enter into hooking engagement therewith smoothly and reliably as the two fastener taFes 15,17 are pressed together. As a result, the possibility of hooking betwee hooks and loops, i.e. the firmness of engagement of a fastener is substantially increased.
Following to the loop-heating operation and prior to the loop-cutting operation, the~fastener tape 10 may be subjected to additional treatments at the desire, such as dyeing and fixing of the loops 12 to the foundation structure ll. The latter operation may be effected by coating or impregnating on the other or reverse surface of the foundation structure 11 with an adhesive or a heat settable resin capable of withstand-ing such temperatures as are likely to be encountered in normal usage of a hook-and-loop fastener of which the hooked fabric fastener tape 15 forms a part.
1 ~7VV25 Although various minor modifications may be suggested by those versed in the art, it should be understood that I wish to embody within the scope of the patent warranted hereon, all such embodiments as reasonably and properly come within the scope of my contribution to the art.
~ield of the Invention:
. .. _ .... .
The present invention relates generally to surface type fasteners known as hook-and-loop fasteners~ and more particularly to a fabric fastener tape carrying on its one surface a number of hook-shaped material engaging elemen~s and a method of pro-ducing ~uch a hooked fabric fastener tape.
Prior Art:
According to a known method, a hooked fabric fastener tape of the type described is produced from a terry or uncut pile fabric carrying on its one surface a number of loops raised ~rom the one surface, each o the loops havins a pair of spaced leg sections and a head section interconnecting the leg sections.
Each loop is cut open or severed at one of the leg sec~ions thereof to produce, on one hand, a hook-shaped material engaging element and, on the other hand, a stem. The prior art hooked fabric fastener tape is disadvantageous in that after the loops ha~e been cut open, the stems remain on the fastener tape adjacent to the corresponding hook shaped material engaging elements in confrontin~ relation tb orsubstantially in vertical alignment with the respecti~e free ends thereof. The stems are liable to hinder cooperating loops on a mating looped fabric fastener tape from being introduced into and hooked by the hook-shaped material engaging elements as the two fastener tapes are pressed into face-to-face contact together. As a result, the possibility of hooking between hooks and loops, and hence the ~irmness of engagement of a hook-and-loop fastener is considerably decreased. In order to displace the hook-shaped material engaging elements away from the stems, the prior art method requires an additional treatment by a raising machine or another complicate and expensive device.
, 1 J 7n~,s It is an object ofthe invention to provide a hooked fabric fastener tape for hook-and-loop fasteners which can adhere to or ~ngage with a cooperating looped fabrlc fastener tape with an increased degree of firmness.
Another o~ject of the invention is to provîde a hooked fabric fastener tape having hook-shaped material engaging elements which can hook cooperating loops of a mating looped fa~ric fastener reliably without causing mis-en~a~e~ent therewith.
A further object of the invention is to provide a method which produces such a hooked fabxic fastener tape simply and less costly.
SUMMARY OF THE INVENTION
_ _ , A hookad fa~ric fastener tape has on one of opposite surfaces of a foundat;on structure a num~er of hook shaped material engaging elements and stems which have been produced in pair from loops on the foundation structure. The respective free ends o~ the hook-shaped material engaging elements and the stems are displaced angularly away i-rom one another as viewed fxom the general plane of the foundation structure for easy hooking engagement with cooperating loops of a mating looped fabric fastener tape.
According to a method of the present invention, a plurali-ty of warp threads of synthetic resin material are woven, while being exerted thereon a torque, together with a plurality of foundation weft and warp threads so as to form loops with the synthetic resin warp threads raised from the so woven foundation structure, each of the loop having a pair of leg sections and a head section interconnecting the legs. The loops are heated at a temperature which causes the loops to retain their shape to form raised pile th~eads while allowing the loops to retain ~ ~7(~O~ti ~n internal torsional stress stored during the weaving operation.
Upon cutting the loops at respective ones of the legs, hook-shaped material engaging elements and stems produced from the respective loops are allowed to displace, due to the internal torsional stress stored therein, angularly away from one another as viewed from the general plane of the foundation structure.
The abo~e and other objects, advantages and features of the present invention will become apparent from the followi`ng description of a pre~erred embodiment taken in conjunction with the accompanying drawings, in which:
BRIEF DESCRIPTION OF . THE DRAWINGS
FIG. 1 is a fra~mentary diagrammatic front elevational view of loops on a foundation structure befoxe being converted into a hooked fabric fastener tape according to the invention;
FIG. 2 is a side elevational view of FIG. 1;
FIGS. 3 and 4 are views similar ~o FIG5. 1 and 2, respec-ti~ely, showing a hooked fa~ric fastener tape having on one of opposîte surfaces of a foundation structure a plurality of hook-shaped material engaging elements and stems which have ~een produced ~y cutting the loops at respective one leg sections thereof shown in FIGS. 1 and 2, according to the present inven-tion; and FIG. 5 is a plan view o~ FIG. 3.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENT
~ eferring now to the drawing, wherein like reference characters designate identical or corresponding parts throughout the several views, and more particularly to FIGS. 1 and 2, there is shown an uncut pile or looped fabric fastener tape 10 produced in accordance with the present invention. The looped fabric fastener tape 10 încludes a foundation structure 11 constituted ~ 1 7 ~ O ~ 5 by a weft thread and a plurality of first warp thr~ads woven with the weft thread (these threads being not shown for clarifi- I
cation).
The fastener tape 10 also includes on one o~ opposite surfaces of the foundation structure 11 a number of loops 12 formed with a plurality of second warp threads woven into the foundation structure during the weaving operation of the same in a loom of the general type employed in weaving vel~et ribbon.
Each of the loops 12 has a pair of leg sections 18,19 and a head section 20 interconnectins the leg sections 18,19. The second warp threads preferably are thermoplastic monofilaments made of a synthetic resin material, such as nylon or Gther material capable of being set by heat into a predetermined shape.
The second warp threads are woven, while exerting thereon a torque or torsional load, together with the foundation weft and warp threads, with the result that the loops 12 formed with thus twisted warp threads are twisted correspondingly as shown in FIG~ 20 Exertion of the ~orque or twist may be done either as the second warp threads a:re supplied into the loom for formation of the loops 12 or as they are wound on bobbins, with the a~d of a suitable torque excertion means.
q`he loops 12 are heated at a temperature which causes the loops 12 to retain their shape to form raised pile threads ~hile allowing the same to retain an internal torsional stresses stored during the weaving operation. Th~ heating temperature of the loops 12 is preferably set at a relatively low temperature in a ranye wi~hin which the second warp threads of thermoplastic synthetic resin material have the thermoplasticity.
Each of the loops 12 is then cut open or severed at one 18 of the respective leg sections 18,19 to produce, on one hand, : _5- :
1 3 7~0~ `
a hook-shaped material engaging element 13 formed jointly with the other leg section 19~ the head section 20 and a part of the one leg section 18 and, on the other hand, a stem 14 formed with the reminder of the cut one leg section 18 and constituting a dressed nap, whereupon the hook-shaped material engaging element and the stem 13,14 are allowed to displace, due to the internal torsional stress stored therein, angularly away from each other as viewed from the general plane of the foundation structure 11, as shown in FIGS. 3 to 5. Thus, a large opening is provided between the free end of the hook-shaped element 13 and the stem 14 for easy reception of a corresponding loop 16 on a mating looped fabric fastener tape 17 (shown by phantom lines in FIG.`3). A hooked fabric fastener tape 15 now converted from the looped fabric fastener tape lO has the hook-shaped material engaging elements 13 which allow the cooperating loops 16 on the looped fabric fastener tape 17 to enter into hooking engagement therewith smoothly and reliably as the two fastener taFes 15,17 are pressed together. As a result, the possibility of hooking betwee hooks and loops, i.e. the firmness of engagement of a fastener is substantially increased.
Following to the loop-heating operation and prior to the loop-cutting operation, the~fastener tape 10 may be subjected to additional treatments at the desire, such as dyeing and fixing of the loops 12 to the foundation structure ll. The latter operation may be effected by coating or impregnating on the other or reverse surface of the foundation structure 11 with an adhesive or a heat settable resin capable of withstand-ing such temperatures as are likely to be encountered in normal usage of a hook-and-loop fastener of which the hooked fabric fastener tape 15 forms a part.
1 ~7VV25 Although various minor modifications may be suggested by those versed in the art, it should be understood that I wish to embody within the scope of the patent warranted hereon, all such embodiments as reasonably and properly come within the scope of my contribution to the art.
Claims (7)
1. A hooked fabric fastener tape comprising:
(a) a foundation structure;
(b) a number of pairs of pile threads made of a synthetic resin material and raised from one surface of said foundation structure, each pair of said pile threads being produced from one loop and consisting of a hook-shaped element and a stem;
(c) the free end of each respective hook shaped element defining a first plane of coincidence generally perpendicular to the surface of the foundation structure, the respective stem being coincident with a second plane of coincidence generally perpendicular to the surface of the foundation structure, said first and second planes of coincidence being distinct from each other and intersecting each other at an angle of displacement.
(a) a foundation structure;
(b) a number of pairs of pile threads made of a synthetic resin material and raised from one surface of said foundation structure, each pair of said pile threads being produced from one loop and consisting of a hook-shaped element and a stem;
(c) the free end of each respective hook shaped element defining a first plane of coincidence generally perpendicular to the surface of the foundation structure, the respective stem being coincident with a second plane of coincidence generally perpendicular to the surface of the foundation structure, said first and second planes of coincidence being distinct from each other and intersecting each other at an angle of displacement.
2. A hooked fabric fastener tape according to claim 1 each of said pile threads being formed with a thermoplastic monofilament.
3. A hooked fabric fastener tape comprising:
(a) a foundation structure including a weft thread, a plurality of first warped threads and a plurality of second warped threads of synthetic resin material in the form of raised pile threads consisting of a number of elements each produced from a single loop, each pair being formed by a hook-shaped element and by a stem;
(b) the free end of each respective hook-shaped element defining a first plane of coincidence generally perpendicular to the surface of the foundation structure, the respective stem being coincident with a second plane of coincidence generally perpendicular to the surface of the foundation structure, said first and second planes of coincidence being distinct from each other and intersecting each other at an angle of displacement.
(a) a foundation structure including a weft thread, a plurality of first warped threads and a plurality of second warped threads of synthetic resin material in the form of raised pile threads consisting of a number of elements each produced from a single loop, each pair being formed by a hook-shaped element and by a stem;
(b) the free end of each respective hook-shaped element defining a first plane of coincidence generally perpendicular to the surface of the foundation structure, the respective stem being coincident with a second plane of coincidence generally perpendicular to the surface of the foundation structure, said first and second planes of coincidence being distinct from each other and intersecting each other at an angle of displacement.
4. A hooked fabric fastener tape according to claim 3, each of said pile threads being formed with a thermoplastic monofilament.
5. A method of producing a hooked fabric fastener tape comprising the steps of:
(a) weaving together a weft thread, a plurality of first warp threads and a plurality of second warp threads of thermoplastic synthetic resin material while said second warp threads are exerted thereon a torque, so as to form loops with said twisted second warp threads on one of opposite surfaces of the so woven foundation structure, each of said loops having a pair of leg sections and a head section interconnecting said leg sections;
(b) heating said loops at a temperature which causes the loops to retain their shape to form raised pile threads while allowing the loops to retain an internal torsional stress stored during said weaving step (a);
and (c) cutting each said loop at one of said leg sections, whereby producing a hook-shaped material engaging element and a stem allowing said hook-shaped material engagement and said stem to displace, due to said internal torsional stress, angularly away from each other as viewed from the general plane of said woven foundation structure.
(a) weaving together a weft thread, a plurality of first warp threads and a plurality of second warp threads of thermoplastic synthetic resin material while said second warp threads are exerted thereon a torque, so as to form loops with said twisted second warp threads on one of opposite surfaces of the so woven foundation structure, each of said loops having a pair of leg sections and a head section interconnecting said leg sections;
(b) heating said loops at a temperature which causes the loops to retain their shape to form raised pile threads while allowing the loops to retain an internal torsional stress stored during said weaving step (a);
and (c) cutting each said loop at one of said leg sections, whereby producing a hook-shaped material engaging element and a stem allowing said hook-shaped material engagement and said stem to displace, due to said internal torsional stress, angularly away from each other as viewed from the general plane of said woven foundation structure.
6. A method according to claim 5, said heating tempera-ture being set at a relatively low temperature in a range within which said second warp threads of thermoplastic synthetic resin material have the thermoplasticity.
7. A method according to claim 5, each of said second warp threads comprising a thermoplastic monofilament.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55-160612 | 1980-11-14 | ||
| JP55160612A JPS5784001A (en) | 1980-11-14 | 1980-11-14 | Hook member for velvet type bastener and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1170025A true CA1170025A (en) | 1984-07-03 |
Family
ID=15718694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000390010A Expired CA1170025A (en) | 1980-11-14 | 1981-11-13 | Hooked fabric fastener tape and method of producing same |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0052338B1 (en) |
| JP (1) | JPS5784001A (en) |
| KR (1) | KR840000716B1 (en) |
| AU (1) | AU529711B2 (en) |
| CA (1) | CA1170025A (en) |
| DE (1) | DE3165114D1 (en) |
| ES (2) | ES261841Y (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0252175A1 (en) * | 1986-07-08 | 1988-01-13 | Erblok Associates c/o Thompson & Thompson | Apparatus for making multiple hook fastener media |
| JPH07106164B2 (en) * | 1986-07-30 | 1995-11-15 | 株式会社クラレ | Male fastener |
| EP0619085B1 (en) * | 1993-04-08 | 1998-09-30 | Magictape Co., Ltd | Separable fastening component |
| JP5692958B2 (en) * | 2008-05-29 | 2015-04-01 | 帝人株式会社 | Loop fasteners and textile products |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3154837A (en) * | 1957-10-02 | 1964-11-03 | Internat Velcro Company | Method for the manufacture of pile fabrics |
| US3136026A (en) * | 1960-06-23 | 1964-06-09 | Velcro Sa Soulie | Method for producing a device for joining two flexibel elements |
| GB1102627A (en) * | 1965-11-18 | 1968-02-07 | Selectus Ltd | Improvements in or relating to fastener members |
| US3879835A (en) * | 1972-10-19 | 1975-04-29 | George C Brumlik | Method of making multi element self-gripping device having cooperating gripping elements |
-
1980
- 1980-11-14 JP JP55160612A patent/JPS5784001A/en active Granted
-
1981
- 1981-11-02 AU AU77009/81A patent/AU529711B2/en not_active Ceased
- 1981-11-11 DE DE8181109621T patent/DE3165114D1/en not_active Expired
- 1981-11-11 EP EP81109621A patent/EP0052338B1/en not_active Expired
- 1981-11-12 KR KR8104351A patent/KR840000716B1/en active
- 1981-11-13 ES ES1981261841U patent/ES261841Y/en not_active Expired
- 1981-11-13 ES ES507659A patent/ES8207419A1/en not_active Expired
- 1981-11-13 CA CA000390010A patent/CA1170025A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU529711B2 (en) | 1983-06-16 |
| EP0052338A1 (en) | 1982-05-26 |
| ES261841Y (en) | 1982-12-01 |
| ES507659A0 (en) | 1982-10-01 |
| ES8207419A1 (en) | 1982-10-01 |
| KR830006954A (en) | 1983-10-12 |
| AU7700981A (en) | 1982-05-20 |
| KR840000716B1 (en) | 1984-05-24 |
| JPS5784001A (en) | 1982-05-26 |
| EP0052338B1 (en) | 1984-07-25 |
| ES261841U (en) | 1982-05-16 |
| DE3165114D1 (en) | 1984-08-30 |
| JPS6233884B2 (en) | 1987-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |