GB1334584A - Prosthetic appliance - Google Patents

Prosthetic appliance

Info

Publication number
GB1334584A
GB1334584A GB3246671A GB3246671A GB1334584A GB 1334584 A GB1334584 A GB 1334584A GB 3246671 A GB3246671 A GB 3246671A GB 3246671 A GB3246671 A GB 3246671A GB 1334584 A GB1334584 A GB 1334584A
Authority
GB
United Kingdom
Prior art keywords
alumina
members
prosthesis
bones
july
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
Application number
GB3246671A
Other languages
English (en)
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.)
Ceraver SA
Original Assignee
Ceraver SA
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 Ceraver SA filed Critical Ceraver SA
Publication of GB1334584A publication Critical patent/GB1334584A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61L27/04—Metals or alloys
    • A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
    • 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
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • 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
    • A61L27/10—Ceramics or glasses
    • A61L27/105—Ceramics or glasses containing Al2O3
    • 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
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • 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
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • 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
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30448—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • 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
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3082—Grooves
    • 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
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2002/30968—Sintering
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • 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
    • A61F2310/00179—Ceramics or ceramic-like structures
    • A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00203—Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
GB3246671A 1970-07-10 1971-07-09 Prosthetic appliance Expired GB1334584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7025848A FR2096895B1 (xx) 1970-07-10 1970-07-10

Publications (1)

Publication Number Publication Date
GB1334584A true GB1334584A (en) 1973-10-24

Family

ID=9058632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3246671A Expired GB1334584A (en) 1970-07-10 1971-07-09 Prosthetic appliance

Country Status (7)

Country Link
BE (1) BE769110A (xx)
DE (1) DE2134316B2 (xx)
FR (1) FR2096895B1 (xx)
GB (1) GB1334584A (xx)
IT (1) IT942440B (xx)
LU (1) LU63465A1 (xx)
NL (1) NL159879B (xx)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979779A (en) * 1974-11-15 1976-09-14 Rosenthal Technik Ag Ceramic implant
US4000525A (en) * 1975-08-21 1977-01-04 The United States Of America As Represented By The Secretary Of The Navy Ceramic prosthetic implant suitable for a knee joint plateau
US4012795A (en) * 1974-10-29 1977-03-22 Feldmuhle Anlagen- Und Produktionsgesellschaft Mit Beschrankter Haftung Artificial head assembly for an articulated joint between two bones
US4058856A (en) * 1975-10-27 1977-11-22 Sulzer Brothers Limited Joint endoprosthesis
US4122605A (en) * 1976-09-22 1978-10-31 Kyoto Ceramic Kabushiki Kaisha Somatic element of single crystalline sapphire ceramics
US4170794A (en) * 1977-03-23 1979-10-16 Rosenthal Technik Ag Bone joint endoprosthesis
US4328593A (en) * 1979-12-22 1982-05-11 Institut Straumann Ag Universal joint prosthesis with cap
EP0094743A1 (en) * 1982-04-19 1983-11-23 William H. Harris A femoral component for a hip prosthesis
US4578081A (en) * 1982-02-17 1986-03-25 Howmedica International, Inc. Bone prosthesis
US4883490A (en) * 1982-01-18 1989-11-28 Indong Oh Acetabular cup
US4908034A (en) * 1983-12-01 1990-03-13 National Research Development Corporation Endoprosthetic bone joint components
GB2268408A (en) * 1992-07-03 1994-01-12 Corin Medical Ltd Orthopaedic implant
EP0968728A2 (en) * 1998-06-30 2000-01-05 Tashima Syunzo Biomedical article made of alumina ceramics
US6136034A (en) * 1998-09-25 2000-10-24 Biopro, Inc. Enarthrodial type joint socket implant
EP1290992A1 (en) * 2001-09-11 2003-03-12 Benoist Girard Sas Acetabular cup
EP2561832A1 (en) 2008-10-07 2013-02-27 Finsbury (Development) Limited Prosthesis
US8679187B2 (en) 2006-03-20 2014-03-25 Smith & Nephew, Inc. Acetabular cup assembly for multiple bearing materials

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2259313C3 (de) * 1971-12-03 1982-07-22 Ceraver S.A., 75008 Paris Prothese zum Ersatz für ein Gelenk
FR2214460B1 (xx) * 1973-01-18 1976-05-14 Ceraver
CH574233A5 (xx) * 1973-12-28 1976-04-15 Friedrichsfeld Gmbh
DE2451275C2 (de) * 1974-10-29 1982-08-26 Feldmühle AG, 4000 Düsseldorf Kopfteil einer zu implantierenden Hüftgelenkprothese
US3996624A (en) * 1975-02-28 1976-12-14 United States Surgical Corporation Prosthetic knee joint
FR2310120A2 (fr) * 1975-05-05 1976-12-03 Ceraver Prothese osseuse en alumine frittee
DE2546824C2 (de) * 1975-10-18 1986-05-07 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Beschichtete Endoprothese und Verfahren zu ihrer Herstellung
DE2732923A1 (de) * 1977-07-21 1979-01-25 Friedrichsfeld Gmbh Gelenkendoprothesen aus nichtmetallischen materialien
FR2429009A1 (fr) * 1978-06-21 1980-01-18 Roux Christiane Prothese pour articulation, en particulier coxo-femorale, artificielle
DE3046553A1 (de) * 1980-12-10 1982-07-15 Feldmühle AG, 4000 Düsseldorf Hueftgelenkpfanne
JPS6131163A (ja) * 1984-07-23 1986-02-13 京セラ株式会社 セラミツク製生体補綴材とその製造方法
DE3433859A1 (de) * 1984-09-14 1986-03-27 Waldemar Link (Gmbh & Co), 2000 Hamburg Gelenkendoprothese und instrument zum ein- bzw. ausschlagen derselben
FR2705883B1 (fr) * 1993-06-04 1995-08-25 Revest Michel Prothèse articulaire à roulement sphérique à billes.
DE4405447B4 (de) * 1994-02-21 2006-03-09 Cerasiv Gmbh Innovatives Keramik-Engineering Hüftgelenkprothese

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE364994A (xx) *
FR1359096A (fr) * 1962-10-23 1964-04-24 Haeger Potteries élément de prothèse et son procédé de fabrication
CH444376A (fr) * 1965-03-15 1967-09-30 Stomatol Sandhaus Sami Dr Med Implant pour la chirurgie de l'os
CH459462A (de) * 1965-05-26 1968-07-15 Christiansen Tor Hüftgelenk-Prothese
CH490077A (de) * 1968-04-25 1970-05-15 Arnold Heinrich Dr Med Huggler Hüftgelenk-Prothese
DE1943801C3 (de) * 1968-07-10 1975-11-20 Institut Dr.-Ing. Reinhard Straumann Ag, Waldenburg (Schweiz) Für die operative Knochenbehandlung dienendes Implantat aus Titan oder einer Legierung auf Titanbasis

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012795A (en) * 1974-10-29 1977-03-22 Feldmuhle Anlagen- Und Produktionsgesellschaft Mit Beschrankter Haftung Artificial head assembly for an articulated joint between two bones
US3979779A (en) * 1974-11-15 1976-09-14 Rosenthal Technik Ag Ceramic implant
US4000525A (en) * 1975-08-21 1977-01-04 The United States Of America As Represented By The Secretary Of The Navy Ceramic prosthetic implant suitable for a knee joint plateau
US4058856A (en) * 1975-10-27 1977-11-22 Sulzer Brothers Limited Joint endoprosthesis
US4122605A (en) * 1976-09-22 1978-10-31 Kyoto Ceramic Kabushiki Kaisha Somatic element of single crystalline sapphire ceramics
US4170794A (en) * 1977-03-23 1979-10-16 Rosenthal Technik Ag Bone joint endoprosthesis
US4328593A (en) * 1979-12-22 1982-05-11 Institut Straumann Ag Universal joint prosthesis with cap
US4883490A (en) * 1982-01-18 1989-11-28 Indong Oh Acetabular cup
US4578081A (en) * 1982-02-17 1986-03-25 Howmedica International, Inc. Bone prosthesis
EP0094743A1 (en) * 1982-04-19 1983-11-23 William H. Harris A femoral component for a hip prosthesis
US4908034A (en) * 1983-12-01 1990-03-13 National Research Development Corporation Endoprosthetic bone joint components
GB2268408A (en) * 1992-07-03 1994-01-12 Corin Medical Ltd Orthopaedic implant
EP0968728A2 (en) * 1998-06-30 2000-01-05 Tashima Syunzo Biomedical article made of alumina ceramics
EP0968728A3 (en) * 1998-06-30 2001-01-10 Tashima Syunzo Biomedical article made of alumina ceramics
US6241773B1 (en) 1998-06-30 2001-06-05 Kyocera Corporation Biomedical article made of alumina ceramics
US6136034A (en) * 1998-09-25 2000-10-24 Biopro, Inc. Enarthrodial type joint socket implant
US6299647B1 (en) 1998-09-25 2001-10-09 Biopro, Inc. Snap-fitting, non-dislocating hip joint socket implant
EP1290992A1 (en) * 2001-09-11 2003-03-12 Benoist Girard Sas Acetabular cup
US8679187B2 (en) 2006-03-20 2014-03-25 Smith & Nephew, Inc. Acetabular cup assembly for multiple bearing materials
EP2561832A1 (en) 2008-10-07 2013-02-27 Finsbury (Development) Limited Prosthesis

Also Published As

Publication number Publication date
BE769110A (fr) 1971-12-28
NL7109237A (xx) 1972-01-12
DE2134316B2 (de) 1976-11-25
NL159879B (nl) 1979-04-17
IT942440B (it) 1973-03-20
FR2096895B1 (xx) 1973-01-12
FR2096895A1 (xx) 1972-03-03
DE2134316A1 (de) 1972-01-13
LU63465A1 (xx) 1972-04-04

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Legal Events

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PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee