SG48885G - Method and apparatus for joining opposed legs portions of molded coupling elements for sliding clasp fasteners - Google Patents
Method and apparatus for joining opposed legs portions of molded coupling elements for sliding clasp fastenersInfo
- Publication number
- SG48885G SG48885G SG48885A SG48885A SG48885G SG 48885 G SG48885 G SG 48885G SG 48885 A SG48885 A SG 48885A SG 48885 A SG48885 A SG 48885A SG 48885 G SG48885 G SG 48885G
- Authority
- SG
- Singapore
- Prior art keywords
- coupling elements
- opposed legs
- sliding clasp
- molded coupling
- clasp fasteners
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
- B29D5/02—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the fasteners having separate interlocking members
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
- A44B19/14—Interlocking member formed by a profiled or castellated edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
- B29C65/0609—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding characterised by the movement of the parts to be joined
- B29C65/0618—Linear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
- B29C65/0681—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding created by a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/081—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations having a component of vibration not perpendicular to the welding surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
- B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
- B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
- B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2005/00—Elements of slide fasteners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/814—Zipper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1712—Indefinite or running length work
- Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Slide Fasteners (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53074659A JPS5840490B2 (ja) | 1978-06-20 | 1978-06-20 | 熱可塑性合成樹脂製フアスナ−エレメントの上下脚部の溶着方法および装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG48885G true SG48885G (en) | 1986-01-17 |
Family
ID=13553574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG48885A SG48885G (en) | 1978-06-20 | 1985-06-19 | Method and apparatus for joining opposed legs portions of molded coupling elements for sliding clasp fasteners |
Country Status (16)
Country | Link |
---|---|
US (1) | US4257839A (pt) |
JP (1) | JPS5840490B2 (pt) |
AU (1) | AU524028B2 (pt) |
BE (1) | BE877114A (pt) |
BR (1) | BR7903933A (pt) |
CA (1) | CA1111233A (pt) |
CH (1) | CH641331A5 (pt) |
DE (1) | DE2924871C2 (pt) |
ES (2) | ES481680A1 (pt) |
FR (1) | FR2429090A1 (pt) |
GB (1) | GB2023065B (pt) |
HK (1) | HK32587A (pt) |
IT (1) | IT1118986B (pt) |
MY (1) | MY8600197A (pt) |
NL (1) | NL185323C (pt) |
SG (1) | SG48885G (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044131B2 (ja) * | 1980-08-19 | 1985-10-02 | ワイケイケイ株式会社 | スライドフアスナ−エレメントの製造方法並びに装置 |
AU547902B2 (en) * | 1980-08-30 | 1985-11-14 | Yoshida Kogyo K.K. | Producing slide fasteners |
JPS5911804A (ja) * | 1982-07-12 | 1984-01-21 | ワイケイケイ株式会社 | コイル状フアスナ−エレメント成形用線材のスタンピング装置 |
JPS6098411U (ja) * | 1983-12-12 | 1985-07-04 | ワイケイケイ株式会社 | スライドフアスナチエ−ンの下止溶融形成装置 |
JPS60142805A (ja) * | 1983-12-29 | 1985-07-29 | ワイケイケイ株式会社 | スライドフアスナ−用フアスナ−エレメントの製造方法並びに製造装置 |
CN101909860B (zh) | 2007-10-25 | 2015-09-02 | 伍德韦尔丁公司 | 用机械振动锚固销钉的方法和装置 |
DE102014223907A1 (de) * | 2014-11-24 | 2016-05-25 | Branson Ultraschall Niederlassung Der Emerson Technologies Gmbh & Co. Ohg | Sonotrode, Schweißvorrichtung mit Sonotrode sowie dazugehöriges Schweißverfahren |
US11406165B2 (en) * | 2017-02-02 | 2022-08-09 | Ykk Corporation | Slide fastener-attached product |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1080442A (en) * | 1963-02-22 | 1967-08-23 | Luc Penelope Jane Vesey | Adhesive and allied processes and products obtained thereby |
US3376179A (en) * | 1964-06-12 | 1968-04-02 | Cavitron Ultrasonics Inc | Method and apparatus for high frequency joining or sealing of thermosoftening materials |
FR1467193A (fr) * | 1965-12-15 | 1967-01-27 | Procédé de soudage par friction et machine à souder par friction pour la mise en oeuvre de ce procédé | |
DE1604451A1 (de) * | 1966-11-10 | 1971-08-26 | Bielomatik Leuze & Co | Verfahren zum Zusammenschweissen von Teilen aus thermoplastischen Kunststoffen |
US3713923A (en) * | 1968-02-26 | 1973-01-30 | Minigrip Inc | Method of assembling slider with a profiled strip separable fastener |
GB1462644A (en) * | 1973-01-26 | 1977-01-26 | Opti Holding Ag | Sliding clasp fastener stringer and process and apparatus for its manufacture |
GB1466673A (en) * | 1973-05-16 | 1977-03-09 | Whitehall Machinery Ltd | Heat-sealing superimposed layers of sheet material |
JPS5228420B2 (pt) * | 1973-11-16 | 1977-07-26 | ||
US3962007A (en) * | 1974-01-25 | 1976-06-08 | Opti-Holding Ag | Method of making slide-fastener stringers |
US4026756A (en) * | 1976-03-19 | 1977-05-31 | Stanfield James S | Apparatus for repairing elongated flexible strips having damaged sprocket feed holes along the edge thereof |
US4033014A (en) * | 1976-05-17 | 1977-07-05 | Textron, Inc. | Continuous molded slide fastener stringer and method and apparatus for manufacture |
US4210985A (en) * | 1976-05-17 | 1980-07-08 | Textron, Inc. | Slide fastener stringer with folded and bonded continuous molded coupling element and method and apparatus for manufacturing |
US4025277A (en) * | 1976-06-23 | 1977-05-24 | Textron, Inc. | Method and apparatus for folding and fusing the elements of a slide fastener string |
-
1978
- 1978-06-20 JP JP53074659A patent/JPS5840490B2/ja not_active Expired
-
1979
- 1979-05-31 AU AU47630/79A patent/AU524028B2/en not_active Ceased
- 1979-06-08 NL NLAANVRAGE7904514,A patent/NL185323C/xx not_active IP Right Cessation
- 1979-06-12 US US06/047,720 patent/US4257839A/en not_active Expired - Lifetime
- 1979-06-19 ES ES481680A patent/ES481680A1/es not_active Expired
- 1979-06-19 CA CA330,082A patent/CA1111233A/en not_active Expired
- 1979-06-19 FR FR7915716A patent/FR2429090A1/fr active Granted
- 1979-06-19 IT IT68308/79A patent/IT1118986B/it active
- 1979-06-20 BR BR7903933A patent/BR7903933A/pt unknown
- 1979-06-20 DE DE2924871A patent/DE2924871C2/de not_active Expired
- 1979-06-20 BE BE0/195851A patent/BE877114A/xx not_active IP Right Cessation
- 1979-06-20 GB GB7921502A patent/GB2023065B/en not_active Expired
- 1979-06-20 CH CH577679A patent/CH641331A5/de not_active IP Right Cessation
-
1980
- 1980-03-14 ES ES489559A patent/ES8100629A1/es not_active Expired
-
1985
- 1985-06-19 SG SG48885A patent/SG48885G/en unknown
-
1986
- 1986-12-30 MY MY197/86A patent/MY8600197A/xx unknown
-
1987
- 1987-04-23 HK HK325/87A patent/HK32587A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB2023065B (en) | 1982-08-18 |
NL185323B (nl) | 1989-10-16 |
ES489559A0 (es) | 1980-12-01 |
NL7904514A (nl) | 1979-12-27 |
DE2924871C2 (de) | 1984-02-02 |
CA1111233A (en) | 1981-10-27 |
GB2023065A (en) | 1979-12-28 |
BE877114A (fr) | 1979-10-15 |
AU524028B2 (en) | 1982-08-26 |
CH641331A5 (de) | 1984-02-29 |
HK32587A (en) | 1987-05-01 |
US4257839A (en) | 1981-03-24 |
IT7968308A0 (it) | 1979-06-19 |
NL185323C (nl) | 1990-03-16 |
JPS552034A (en) | 1980-01-09 |
FR2429090B1 (pt) | 1982-03-19 |
AU4763079A (en) | 1980-01-03 |
ES481680A1 (es) | 1980-06-16 |
FR2429090A1 (fr) | 1980-01-18 |
MY8600197A (en) | 1986-12-31 |
BR7903933A (pt) | 1980-03-04 |
JPS5840490B2 (ja) | 1983-09-06 |
DE2924871A1 (de) | 1980-01-17 |
IT1118986B (it) | 1986-03-03 |
ES8100629A1 (es) | 1980-12-01 |
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