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CH544127A - Formteil, Verfahren zu seiner Herstellung sowie Verwendung desselben - Google Patents

Formteil, Verfahren zu seiner Herstellung sowie Verwendung desselben

Info

Publication number
CH544127A
CH544127A CH1461970A CH1461970A CH544127A CH 544127 A CH544127 A CH 544127A CH 1461970 A CH1461970 A CH 1461970A CH 1461970 A CH1461970 A CH 1461970A CH 544127 A CH544127 A CH 544127A
Authority
CH
Switzerland
Prior art keywords
manufacture
same
molded part
molded
Prior art date
Application number
CH1461970A
Other languages
English (en)
Inventor
L Gore Wilbert
Original Assignee
Gore & Ass
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25341112&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CH544127(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gore & Ass filed Critical Gore & Ass
Publication of CH544127A publication Critical patent/CH544127A/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
    • 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
    • Y10S260/00—Chemistry of carbon compounds
    • Y10S260/37—Closure
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/47—Processes of splitting film, webs or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Sealing Material Composition (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
CH1461970A 1969-10-03 1970-10-02 Formteil, Verfahren zu seiner Herstellung sowie Verwendung desselben CH544127A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86344669A 1969-10-03 1969-10-03

Publications (1)

Publication Number Publication Date
CH544127A true CH544127A (de) 1973-11-15

Family

ID=25341112

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1461970A CH544127A (de) 1969-10-03 1970-10-02 Formteil, Verfahren zu seiner Herstellung sowie Verwendung desselben

Country Status (12)

Country Link
US (1) US3664915A (de)
JP (2) JPS4844664B1 (de)
BE (1) BE757004A (de)
CA (1) CA957470A (de)
CH (1) CH544127A (de)
DE (1) DE2028393B2 (de)
DK (1) DK139529B (de)
FR (1) FR2064989A5 (de)
GB (1) GB1278364A (de)
NL (1) NL159913C (de)
SE (1) SE389298B (de)
ZA (1) ZA706542B (de)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757004A (fr) * 1969-10-03 1971-03-16 Gore & Ass Agent d'etancheite
SE392582B (sv) * 1970-05-21 1977-04-04 Gore & Ass Forfarande vid framstellning av ett porost material, genom expandering och streckning av en tetrafluoretenpolymer framstelld i ett pastabildande strengsprutningsforfarande
GB1371334A (en) * 1970-10-30 1974-10-23 Agfa Gevaert Film stretching method and apparatus
CH549454A (de) * 1971-04-28 1974-05-31 Polygest Ag Verfahren zur herstellung eines blattes oder bandes aus polytetrafluoraethylen von geringer dichte.
US3853690A (en) * 1972-06-23 1974-12-10 American Cyanamid Co Metal substrates bonded with thermosetting resin compositions containing fibrillated polytetrafluoroethylene
US4096227A (en) * 1973-07-03 1978-06-20 W. L. Gore & Associates, Inc. Process for producing filled porous PTFE products
DE2403244C3 (de) * 1974-01-24 1980-12-04 Riedel-De Haen Ag, 3016 Seelze Für Gase permeable, flüssigkeitsdichte Absperrvorrichtung
US4000348A (en) * 1974-10-15 1976-12-28 Carlisle Corporation Flat multiconductor cable and process for manufacture thereof
US3957938A (en) * 1974-10-21 1976-05-18 Phillips Petroleum Company Pretreatment of polytetrafluoroethylene filter bags
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
US4064214A (en) * 1975-09-22 1977-12-20 E. I. Du Pont De Nemours And Company Process for making polytetrafluoroethylene yarn
US4031283A (en) * 1975-11-20 1977-06-21 E. I. Du Pont De Nemours And Company Polytetrafluoroethylene felt
US4324574A (en) * 1980-12-19 1982-04-13 E. I. Du Pont De Nemours And Company Felt-like layered composite of PTFE and glass paper
US4478898A (en) * 1982-06-04 1984-10-23 Junkosha Co., Ltd. Laminated porous polytetrafluoroethylene tube and its process of manufacture
JPS59109534A (ja) * 1982-12-14 1984-06-25 Nitto Electric Ind Co Ltd ポリテトラフルオロエチレン多孔質体
EP0172750A3 (de) * 1984-08-22 1987-03-18 E.I. Du Pont De Nemours And Company Poröse Strukturen
US6270890B1 (en) 1988-03-29 2001-08-07 Colgate-Palmolive Company Dental floss
US5192484A (en) * 1988-09-14 1993-03-09 Matsuzawa Co., Ltd. Method of forming blisters
US5098625A (en) * 1989-03-14 1992-03-24 Yeu Ming Tai Chemical Industrial Co., Ltd. Process for forming an expanded porous tetrafluoroethylene polymer
DE3928961A1 (de) * 1989-08-31 1991-03-14 Gore W L & Ass Gmbh Verfahren zur herstellung einer dichtung
AU668087B2 (en) * 1991-06-04 1996-04-26 Donaldson Company Inc. Fluid treated polytetrafluoroethylene products and their manufacture
DE69325649T2 (de) * 1992-03-13 1999-11-18 Atrium Medical Corp., Hollis Gegenstände aus expandiertem fluorpolymer (z. b. polytetrafluorethylen) mit komtrolliert eingestellter porosität, sowie seine herstellung
US5721283A (en) * 1992-06-25 1998-02-24 E. I. Du Pont De Nemours And Company Porous polytetrafluoroethylene and preparation
US5638589A (en) * 1993-02-04 1997-06-17 Phillips; Edwin D. Shoelace and method of making the same
WO1995002447A1 (en) * 1993-07-16 1995-01-26 E.I. Du Pont De Nemours And Company Asymmetric membranes of polytetrafluoroethylene and their preparation
US5591526A (en) * 1994-06-15 1997-01-07 W. L. Gore & Associates, Inc Expanded PTFE fiber and fabric and method of making same
US5919583A (en) * 1995-03-20 1999-07-06 E. I. Du Pont De Nemours And Company Membranes containing inorganic fillers and membrane and electrode assemblies and electrochemical cells employing same
CN1076747C (zh) * 1995-03-31 2001-12-26 大金工业株式会社 螺纹接合密封带
US5981097A (en) * 1996-12-23 1999-11-09 E.I. Du Pont De Nemours And Company Multiple layer membranes for fuel cells employing direct feed fuels
US6214362B1 (en) 1999-11-24 2001-04-10 Darren L. Page Cosmetic pad for removing low tension substances and applying cosmetics
WO2002058585A1 (en) * 2001-01-22 2002-08-01 Brown Dale G Non-crystalline saliva-soluble coatings for elastomeric monofilament dental tapes
US7017591B2 (en) * 2001-08-23 2006-03-28 International Tape Partners Llc Particulate coated monofilament devices
WO2004106349A1 (en) * 2003-05-27 2004-12-09 E.I. Dupont De Nemours And Company Fuel cell membrane containing zirconium phosphate
JP2007528843A (ja) * 2003-06-27 2007-10-18 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー フッ素化スルホンアミド化合物、およびそれらから製造された、電気化学電池に使用するためのポリマー電解質膜
DE112004001169T5 (de) * 2003-06-27 2006-06-01 E.I. Du Pont De Nemours And Co., Wilmington Trifluorstyrol enthaltende Verbindungen und ihre Verwendung in Polymer-Elektrolytmembranen
TW200512976A (en) * 2003-06-27 2005-04-01 Du Pont Sulfonimide containing compounds and their use in polymer electrolyte membranes for electrochemical cells
TW200536868A (en) * 2004-05-07 2005-11-16 Du Pont Stable trifluorostyrene containing compounds, and their use in polymer electrolyte membranes
US8039681B2 (en) * 2004-08-20 2011-10-18 E. I. Du Pont De Nemours And Company Functionalized carbon materials
US8785013B2 (en) * 2004-08-20 2014-07-22 E I Du Pont De Nemours And Company Compositions containing modified fullerenes
ES2342538T3 (es) * 2004-10-20 2010-07-08 Resitape Srl Material de sellado y proceso para sellar conexiones de tuberias, proceso de fabricacion y distribuidor para el material de sellado.
US7806922B2 (en) * 2004-12-31 2010-10-05 Boston Scientific Scimed, Inc. Sintered ring supported vascular graft
US7524445B2 (en) * 2004-12-31 2009-04-28 Boston Scientific Scimed, Inc. Method for making ePTFE and structure containing such ePTFE, such as a vascular graft
US20060149366A1 (en) * 2004-12-31 2006-07-06 Jamie Henderson Sintered structures for vascular graft
US7857843B2 (en) * 2004-12-31 2010-12-28 Boston Scientific Scimed, Inc. Differentially expanded vascular graft
US20060233991A1 (en) * 2005-04-13 2006-10-19 Trivascular, Inc. PTFE layers and methods of manufacturing
US20060233990A1 (en) * 2005-04-13 2006-10-19 Trivascular, Inc. PTFE layers and methods of manufacturing
DE102005036122B4 (de) * 2005-08-01 2007-05-24 Kwo Dichtungstechnik-Gmbh Gesintertes, expandiertes PTFE-Material und Verfahren zu seiner Herstellung
DE102006023729B3 (de) * 2006-02-06 2007-04-26 Sprügel, Friedrich A. Gewindedichtfaden und Verfahren zu seiner Herstellung
US20070282023A1 (en) * 2006-06-01 2007-12-06 Lousenberg Robert D Fluoropolymer dispersions and membranes
US20070281198A1 (en) * 2006-06-01 2007-12-06 Lousenberg Robert D Membranes electrode assemblies prepared from fluoropolymer dispersions
US8058319B2 (en) * 2006-06-01 2011-11-15 E.I. Du Pont De Nemours And Company Process to prepare fluoropolymer dispersions and membranes
US7838594B2 (en) 2006-10-04 2010-11-23 E.I. Du Pont De Nemours And Company Bridged arylene fluorinated sulfonimide compositions and polymers
US7868086B2 (en) * 2006-10-04 2011-01-11 E. I. Du Pont De Nemours And Company Arylene fluorinated sulfonimide polymers and membranes
US7910653B2 (en) * 2006-10-04 2011-03-22 E.I. Du Pont De Nemours And Company Process for the preparation of arylene fluorinated sulfonimide polymers and membranes
US7838612B2 (en) * 2006-10-04 2010-11-23 E. I. Du Pont De Nemours And Company Arylene fluorinated sulfonimide compositions
US8058383B2 (en) 2006-12-18 2011-11-15 E. I. Du Pont De Nemours And Company Arylene-fluorinated-sulfonimide ionomers and membranes for fuel cells
US20100047190A1 (en) 2006-12-19 2010-02-25 Basf Se Uses and methods for preventing and/or treating caries caused by mutants streptococci
US8415070B2 (en) * 2006-12-21 2013-04-09 E I Du Pont De Nemours And Company Partially fluorinated cyclic ionic polymers and membranes
US7456314B2 (en) * 2006-12-21 2008-11-25 E.I. Du Pont De Nemours And Company Partially fluorinated ionic compounds
CN100564474C (zh) * 2007-04-30 2009-12-02 北京市天山新材料技术公司 聚四氟乙烯密封带及其加工工艺以及储带装置
CN101687402B (zh) * 2007-06-21 2013-08-21 日东电工株式会社 聚四氟乙烯多孔片卷及带卷
US20090068528A1 (en) * 2007-09-12 2009-03-12 Teasley Mark F Heat treatment of perfluorinated ionomeric membranes
US20110046247A1 (en) * 2007-12-20 2011-02-24 E.I. Du Pont De Nemours And Company Crosslinkable monomer
EP2222761A1 (de) * 2007-12-20 2010-09-01 E. I. du Pont de Nemours and Company Verfahren zur herstellung von vernetzbaren trifluorstyrolpolymeren und membranen
EP2222733A1 (de) * 2007-12-20 2010-09-01 E. I. du Pont de Nemours and Company Vernetzbare trifluorstyrolpolymere und membranen
US8071254B2 (en) * 2007-12-27 2011-12-06 E. I. Du Pont De Nemours And Company Crosslinkable fluoropolymer, crosslinked fluoropolymers and crosslinked fluoropolymer membranes
US20100093878A1 (en) * 2007-12-27 2010-04-15 E.I. Du Pont De Nemours And Company Crosslinkable fluoropolymer, crosslinked fluoropolymers and crosslinked fluoropolymer membranes
EP2133414A1 (de) 2008-06-11 2009-12-16 Basf Se Anwendungen und Verfahren zur Vorbeugung und/oder Behandlung von Mundgeruch
US20120302725A1 (en) 2009-12-29 2012-11-29 E I Du Pont De Nemours And Company Polyarylene ionomers
JP2013515848A (ja) 2009-12-29 2013-05-09 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー ポリアリーレンアイオノマー性膜
JP2014502776A (ja) 2010-12-20 2014-02-03 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 燃料電池の１種以上の電極として使用するための高分子量アイオノマーおよびイオン伝導性組成物
EP2656425B1 (de) 2010-12-20 2014-12-10 E.I. Du Pont De Nemours And Company Ionomere und ionisch leitende mischungen zur verwendung
US20130245219A1 (en) 2010-12-20 2013-09-19 E I Du Pont De Nemours And Company Ionomers and ionically conductive compositions
CN103384526B (zh) 2011-01-24 2017-10-13 巴斯夫欧洲公司 改善口腔健康的组合物
US8609249B2 (en) 2011-02-09 2013-12-17 Phillips Scientific Inc. Thin wall expandable polymer tubes having improved axial and radial strength, and a method of manufacturing thereof
US10449781B2 (en) 2013-10-09 2019-10-22 Dover Europe Sarl Apparatus and method for thermal transfer printing
EP4417225A3 (de) 2015-02-26 2024-11-13 Merit Medical Systems, Inc. Geschichtete medizinische vorrichtungen und verfahren
KR102605324B1 (ko) * 2018-10-04 2023-11-22 더블유.엘. 고어 앤드 어소시에이트스, 인코포레이티드 치수 안정성을 갖는 비소결의 팽창된 폴리테트라플루오로에틸렌 복합 막
US11040548B1 (en) 2019-12-10 2021-06-22 Dover Europe Sarl Thermal transfer printers for deposition of thin ink layers including a carrier belt and rigid blade
CN113478873B (zh) * 2021-05-17 2024-03-26 芜湖市晟源电器有限公司 一种车灯退火装置

Family Cites Families (12)

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FR1237569A (fr) * 1958-10-14 1960-07-29 Ruban lubrifiant et d'étanchéité pour joint fileté
US3315020A (en) * 1962-03-21 1967-04-18 Gore & Ass Process for preparing biaxially fibrillated sheets
US3260774A (en) * 1963-01-21 1966-07-12 Tensolite Insulated Wire Co In Method for the continuous extrusion of unsintered polytetrafluoroethylene powder
US3295166A (en) * 1963-07-24 1967-01-03 Du Pont Apparatus for extruding polytetrafluoroethylene tubing and wire coating
GB1103141A (en) * 1963-08-10 1968-02-14 Rasmussen O B Improved fibrous article and method of manufacturing same
GB1103583A (en) * 1963-11-12 1968-02-14 Metal Containers Ltd Reticular structures and method of manufacturing the same
US3461199A (en) * 1966-05-03 1969-08-12 Du Pont Process for improving dimensional stability of tensilized polyester film
US3490986A (en) * 1967-03-07 1970-01-20 Oil Center Research Inc Self-molding packing
BE757004A (fr) * 1969-10-03 1971-03-16 Gore & Ass Agent d'etancheite
GB1307340A (en) * 1971-01-06 1973-02-21 Bukh Motorfab As Reversing gears particularly but not exclusively for boat engines
JPS5140664B2 (de) * 1971-09-07 1976-11-05
JPS5140666B2 (de) * 1971-09-08 1976-11-05

Also Published As

Publication number Publication date
DE2028393B2 (de) 1974-05-02
NL159913B (nl) 1979-04-17
GB1278364A (en) 1972-06-21
DK139529B (da) 1979-03-05
JPS5226547B1 (de) 1977-07-14
US3664915A (en) 1972-05-23
NL7014382A (de) 1971-04-06
DE2028393A1 (de) 1971-04-22
ZA706542B (en) 1971-04-28
FR2064989A5 (de) 1971-07-23
NL159913C (nl) 1979-09-17
SE389298B (sv) 1976-11-01
CA957470A (en) 1974-11-12
DK139529C (de) 1979-09-24
BE757004A (fr) 1971-03-16
JPS4844664B1 (de) 1973-12-26

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