DE2360686A1 - Mit pyrolytischem kohlenstoff beschichteter gegenstand - Google Patents

Mit pyrolytischem kohlenstoff beschichteter gegenstand

Info

Publication number
DE2360686A1
DE2360686A1 DE2360686A DE2360686A DE2360686A1 DE 2360686 A1 DE2360686 A1 DE 2360686A1 DE 2360686 A DE2360686 A DE 2360686A DE 2360686 A DE2360686 A DE 2360686A DE 2360686 A1 DE2360686 A1 DE 2360686A1
Authority
DE
Germany
Prior art keywords
wear
carbide
abrasion
resistant
amount
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Withdrawn
Application number
DE2360686A
Other languages
German (de)
English (en)
Inventor
Jack Chester Bokros
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gulf Oil Corp
Original Assignee
Gulf Oil Corp
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
Application filed by Gulf Oil Corp filed Critical Gulf Oil Corp
Publication of DE2360686A1 publication Critical patent/DE2360686A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2421—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with non-pivoting rigid closure members
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/08—Carbon ; Graphite
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28—Materials for coating prostheses
    • A61L27/30—Inorganic materials
    • A61L27/306—Other specific inorganic materials not covered by A61L27/303 - A61L27/32
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • C08K3/14—Carbides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00161—Carbon; Graphite
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
    • Y10T428/292—In coating or impregnation
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Dermatology (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Vapour Deposition (AREA)
  • Physical Vapour Deposition (AREA)
  • Materials For Medical Uses (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Laminated Bodies (AREA)
DE2360686A 1973-02-05 1973-12-05 Mit pyrolytischem kohlenstoff beschichteter gegenstand Withdrawn DE2360686A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/329,526 US3969130A (en) 1973-02-05 1973-02-05 Carbon-coated articles and method of making same

Publications (1)

Publication Number Publication Date
DE2360686A1 true DE2360686A1 (de) 1974-08-08

Family

ID=23285822

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2360686A Withdrawn DE2360686A1 (de) 1973-02-05 1973-12-05 Mit pyrolytischem kohlenstoff beschichteter gegenstand

Country Status (10)

Country Link
US (1) US3969130A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS49111912A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1009096A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH592746A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2360686A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES421423A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2216366B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1420483A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT997807B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE400268B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238866A (en) * 1991-09-11 1993-08-24 GmbH & Co. Ingenieurburo Berlin Biotronik Mess- und Therapiegerate Plasma enhanced chemical vapor deposition process for producing an amorphous semiconductive surface coating

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GB1490347A (en) * 1974-02-08 1977-11-02 Dunlop Ltd Friction members
US4038703A (en) * 1975-11-14 1977-08-02 General Atomic Company Prosthetic devices having a region of controlled porosity
US4035541A (en) * 1975-11-17 1977-07-12 Kennametal Inc. Sintered cemented carbide body coated with three layers
DE2603456C2 (de) * 1976-01-30 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur Herstellung eines Knochenimplantates
US4405685A (en) * 1980-11-13 1983-09-20 Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry Carbon fibers with duplex metal carbide coating and methods for manufacture thereof
US4537759A (en) * 1981-08-24 1985-08-27 Eagle-Picher Industries, Inc. Production of elemental silicon from impure silane feed
US4487799A (en) * 1982-06-24 1984-12-11 United Technologies Corporation Pyrolytic graphite pretreatment for carbon-carbon composites
US4425407A (en) 1982-06-24 1984-01-10 United Technologies Corporation CVD SiC pretreatment for carbon-carbon composites
US4850717A (en) * 1982-09-17 1989-07-25 Clark Eugene V Process sensor tube having erosion and corrosion resistance
US5387247A (en) * 1983-10-25 1995-02-07 Sorin Biomedia S.P.A. Prosthetic device having a biocompatible carbon film thereon and a method of and apparatus for forming such device
US4668579A (en) * 1984-02-01 1987-05-26 The United States Of America As Represented By The Secretary Of The Air Force Interstitially protected oxidation resistant carbon-carbon composite
JPS60227763A (ja) * 1984-04-27 1985-11-13 筏　義人 抗血栓性医用材料
FR2566272B1 (fr) * 1984-06-20 1987-04-03 France Implant Est Implants chirurgicaux perfectionnes comportant un revetement, notamment en nitrure de titane
EP0305790B1 (en) * 1985-03-20 1993-01-13 Sharp Kabushiki Kaisha Production of graphite intercalation compound and doped carbon films
US5084151A (en) * 1985-11-26 1992-01-28 Sorin Biomedica S.P.A. Method and apparatus for forming prosthetic device having a biocompatible carbon film thereon
IT1196836B (it) * 1986-12-12 1988-11-25 Sorin Biomedica Spa Protesi in materiale polimerico con rivestimento di carbonio biocompatibile
JPH01197376A (ja) * 1988-02-01 1989-08-09 Ibiden Co Ltd 多孔質炭素材及びその製造方法
US5169508A (en) * 1988-03-04 1992-12-08 Sharp Kabushiki Kaisha Graphite electrode
JPH0722018B2 (ja) * 1988-03-04 1995-03-08 シャープ株式会社 黒鉛電極の製造方法
DE8815082U1 (de) * 1988-11-29 1989-05-18 Biotronik Meß- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin, 1000 Berlin Herzklappenprothese
US5163958A (en) * 1989-02-02 1992-11-17 Cordis Corporation Carbon coated tubular endoprosthesis
US4980202A (en) * 1989-07-03 1990-12-25 United Technologies Corporation CVD SiC matrix composites containing carbon coated fibers
US5258022A (en) * 1989-07-25 1993-11-02 Smith & Nephew Richards, Inc. Zirconium oxide and nitride coated cardiovascular implants
US5496359A (en) * 1989-07-25 1996-03-05 Smith & Nephew Richards, Inc. Zirconium oxide and zirconium nitride coated biocompatible leads
US5370694A (en) * 1989-07-25 1994-12-06 Smith & Nephew Richards, Inc. Zirconium oxide and nitride coated endoprostheses for tissue protection
US5628790A (en) * 1989-07-25 1997-05-13 Smith & Nephew, Inc. Zirconium oxide zirconium nitride coated valvular annuloplasty rings
US5282850A (en) * 1989-07-25 1994-02-01 Smith & Nephew Richards, Inc. Artificial heart components with wear resistant coatings of reduced thrombogenicity
US5632779A (en) * 1989-07-25 1997-05-27 Smith & Nephew, Inc. Zirconium oxide and zirconium nitride coated vascular grafts
US5477864A (en) * 1989-12-21 1995-12-26 Smith & Nephew Richards, Inc. Cardiovascular guidewire of enhanced biocompatibility
JPH046265A (ja) * 1990-04-24 1992-01-10 Toyota Central Res & Dev Lab Inc 鉄系合金基体への固体潤滑被膜の形成方法および固体潤滑被膜をもつ摺動部材
IT1247037B (it) * 1991-06-25 1994-12-12 Sante Camilli Valvola venosa artificiale
US5207707A (en) * 1992-01-16 1993-05-04 Carbomedics, Inc. Tri-leaflet all carbon heart valve
US5514410A (en) * 1994-09-08 1996-05-07 Carbon Implants, Inc. Pyrocarbon and process for depositing pyrocarbon coatings
US5954724A (en) 1997-03-27 1999-09-21 Davidson; James A. Titanium molybdenum hafnium alloys for medical implants and devices
EP1200639A1 (en) 1999-05-20 2002-05-02 Medicalcv, Inc. Pyrolytic carbon coating apparatus having feed gas actuator
US7632309B1 (en) * 1999-12-13 2009-12-15 St. Jude Medical, Inc. Pyrolytic carbon and metal/metalloid carbide composites
US8724769B2 (en) 2004-03-01 2014-05-13 Pebble Bed Modular Reactor (Proprietary) Limited Nuclear fuel
US20070228664A1 (en) * 2006-03-31 2007-10-04 Krishnamurthy Anand Mechanical seals and methods of making
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US9254349B2 (en) 2009-02-09 2016-02-09 St. Jude Medical, Inc. Enhancing biocompatibility of a medical device
CN104984400B (zh) * 2015-07-10 2017-10-27 中奥汇成科技股份有限公司 一种具有碳基膜的关节头

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US3676179A (en) * 1968-10-03 1972-07-11 Gulf Oil Corp Coated article and method for making same
US3673051A (en) * 1969-03-20 1972-06-27 Gen Electric Pyrolytic graphite
US3677795A (en) * 1969-05-01 1972-07-18 Gulf Oil Corp Method of making a prosthetic device
US3684585A (en) * 1970-07-13 1972-08-15 Materials Technology Corp Method for forming adherent titanium carbide coatings on metal or composite substrates
US3685059A (en) * 1970-07-28 1972-08-22 Gulf General Atomic Inc Prosthetic blood circulation device having a pyrolytic carbon coated blood contacting surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238866A (en) * 1991-09-11 1993-08-24 GmbH & Co. Ingenieurburo Berlin Biotronik Mess- und Therapiegerate Plasma enhanced chemical vapor deposition process for producing an amorphous semiconductive surface coating

Also Published As

Publication number Publication date
IT997807B (it) 1975-12-30
FR2216366A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-08-30
SE400268B (sv) 1978-03-20
US3969130A (en) 1976-07-13
JPS49111912A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-24
CA1009096A (en) 1977-04-26
ES421423A1 (es) 1976-04-16
CH592746A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-11-15
GB1420483A (en) 1976-01-07
FR2216366B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-06-10

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Legal Events

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8141 Disposal/no request for examination