FR2096895A1 - - Google Patents

Info

Publication number
FR2096895A1
FR2096895A1 FR7025848A FR7025848A FR2096895A1 FR 2096895 A1 FR2096895 A1 FR 2096895A1 FR 7025848 A FR7025848 A FR 7025848A FR 7025848 A FR7025848 A FR 7025848A FR 2096895 A1 FR2096895 A1 FR 2096895A1
Authority
FR
France
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.)
Granted
Application number
FR7025848A
Other languages
French (fr)
Other versions
FR2096895B1 (de
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.)
ELECTRO CERAMIQUE CIE GL
Original Assignee
ELECTRO CERAMIQUE CIE GL
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 ELECTRO CERAMIQUE CIE GL filed Critical ELECTRO CERAMIQUE CIE GL
Priority to FR7025848A priority Critical patent/FR2096895B1/fr
Priority to BE769110A priority patent/BE769110A/xx
Priority to NL7109237A priority patent/NL159879B/xx
Priority to LU63465D priority patent/LU63465A1/xx
Priority to IT6932471A priority patent/IT942440B/it
Priority to DE19712134316 priority patent/DE2134316B2/de
Priority to GB3246671A priority patent/GB1334584A/en
Publication of FR2096895A1 publication Critical patent/FR2096895A1/fr
Application granted granted Critical
Publication of FR2096895B1 publication Critical patent/FR2096895B1/fr
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
FR7025848A 1970-07-10 1970-07-10 Expired FR2096895B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7025848A FR2096895B1 (de) 1970-07-10 1970-07-10
BE769110A BE769110A (fr) 1970-07-10 1971-06-28 Prothese osseuse en alumine fritee
NL7109237A NL159879B (nl) 1970-07-10 1971-07-05 Prothese ter vervanging van een gewricht tussen twee beenderen.
LU63465D LU63465A1 (de) 1970-07-10 1971-07-05
IT6932471A IT942440B (it) 1970-07-10 1971-07-09 Protesi ossea
DE19712134316 DE2134316B2 (de) 1970-07-10 1971-07-09 Prothese zum ersatz fuer ein gelenk
GB3246671A GB1334584A (en) 1970-07-10 1971-07-09 Prosthetic appliance

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2096895A1 true FR2096895A1 (de) 1972-03-03
FR2096895B1 FR2096895B1 (de) 1973-01-12

Family

ID=9058632

Family Applications (1)

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

Country Status (7)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400134A1 (de) * 1973-01-18 1974-07-25 Ceraver Verfahren zur herstellung einer knochenprothese sowie nach diesem verfahren hergestellte knochenprothese
US3939497A (en) * 1973-12-28 1976-02-24 Friedrichsfeld Gmbh. Steinzeug-Und Kunststoffwerke Fastening means for hip joint prosthesis sockets
FR2310120A2 (fr) * 1975-05-05 1976-12-03 Ceraver Prothese osseuse en alumine frittee
DE2925089A1 (de) * 1978-06-21 1980-01-10 Christiane Roux Gelenkprothese, insbesondere kuenstliches oberschenkelhueftgelenk
EP0053794A2 (de) * 1980-12-10 1982-06-16 Feldmühle Aktiengesellschaft Hüftgelenkpfanne
FR2705883A1 (fr) * 1993-06-04 1994-12-09 Revest Michel Prothèse articulaire à roulement sphérique à billes.

Families Citing this family (25)

* 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
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
DE2451275C2 (de) * 1974-10-29 1982-08-26 Feldmühle AG, 4000 Düsseldorf Kopfteil einer zu implantierenden Hüftgelenkprothese
DE2454181C3 (de) * 1974-11-15 1980-02-21 Rosenthal Technik Ag, 8672 Selb Keramisches Implantat
US3996624A (en) * 1975-02-28 1976-12-14 United States Surgical Corporation Prosthetic knee joint
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
DE2546824C2 (de) * 1975-10-18 1986-05-07 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Beschichtete Endoprothese und Verfahren zu ihrer Herstellung
CH598806A5 (de) * 1975-10-27 1978-05-12 Sulzer Ag
US4122605A (en) * 1976-09-22 1978-10-31 Kyoto Ceramic Kabushiki Kaisha Somatic element of single crystalline sapphire ceramics
DE2712855C2 (de) * 1977-03-23 1982-06-09 Rosenthal Technik Ag, 8672 Selb Gelenk-Endoprothese
DE2732923A1 (de) * 1977-07-21 1979-01-25 Friedrichsfeld Gmbh Gelenkendoprothesen aus nichtmetallischen materialien
CH642251A5 (de) * 1979-12-22 1984-04-13 Straumann Inst Ag Kugelgelenkkopf-prothese mit einer kappe.
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
US4406023A (en) * 1982-04-19 1983-09-27 Harris William H Stemmed femoral component for the human hip
GB8332119D0 (en) * 1983-12-01 1984-01-11 Weightman B O Endoprosthetic bone joint components
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
GB2268408A (en) * 1992-07-03 1994-01-12 Corin Medical Ltd Orthopaedic implant
DE4405447B4 (de) * 1994-02-21 2006-03-09 Cerasiv Gmbh Innovatives Keramik-Engineering Hüftgelenkprothese
JP2000016863A (ja) 1998-06-30 2000-01-18 Shunzo Tajima アルミナセラミックス生体部材
US6136034A (en) * 1998-09-25 2000-10-24 Biopro, Inc. Enarthrodial type joint socket implant
GB0122002D0 (en) * 2001-09-11 2001-10-31 Benoist Girard Sas Acetabular cup
ES2430199T3 (es) 2006-03-20 2013-11-19 Smith & Nephew, Inc. Conjunto de copa acetabular para múltiples materiales de apoyo
EP2174621B1 (de) 2008-10-07 2013-07-17 Finsbury (Development) Limited Prothese

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE364994A (de) *
FR1359096A (fr) * 1962-10-23 1964-04-24 Haeger Potteries élément de prothèse et son procédé de fabrication
FR1471000A (fr) * 1965-03-15 1967-02-24 Matériau pour implants, prothèses et outils
CH459462A (de) * 1965-05-26 1968-07-15 Christiansen Tor Hüftgelenk-Prothese
FR2006925A1 (de) * 1968-04-25 1970-01-02 Weber Bernhard
DE1943801A1 (de) * 1968-07-10 1970-04-23 Straumann Inst Ag Fuer die operative Knochenbehandlung dienendes Implantat aus Titan oder einer Legierung auf Titanbasis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE364994A (de) *
FR1359096A (fr) * 1962-10-23 1964-04-24 Haeger Potteries élément de prothèse et son procédé de fabrication
FR1471000A (fr) * 1965-03-15 1967-02-24 Matériau pour implants, prothèses et outils
CH459462A (de) * 1965-05-26 1968-07-15 Christiansen Tor Hüftgelenk-Prothese
FR2006925A1 (de) * 1968-04-25 1970-01-02 Weber Bernhard
DE1943801A1 (de) * 1968-07-10 1970-04-23 Straumann Inst Ag Fuer die operative Knochenbehandlung dienendes Implantat aus Titan oder einer Legierung auf Titanbasis

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400134A1 (de) * 1973-01-18 1974-07-25 Ceraver Verfahren zur herstellung einer knochenprothese sowie nach diesem verfahren hergestellte knochenprothese
US3939497A (en) * 1973-12-28 1976-02-24 Friedrichsfeld Gmbh. Steinzeug-Und Kunststoffwerke Fastening means for hip joint prosthesis sockets
FR2310120A2 (fr) * 1975-05-05 1976-12-03 Ceraver Prothese osseuse en alumine frittee
DE2925089A1 (de) * 1978-06-21 1980-01-10 Christiane Roux Gelenkprothese, insbesondere kuenstliches oberschenkelhueftgelenk
US4262369A (en) * 1978-06-21 1981-04-21 Christiane Roux Artificial joints, in particular coxo-femoral joints
USRE31865E (en) * 1978-06-21 1985-04-16 Artificial joints, in particular coxo-femoral joints
EP0053794A2 (de) * 1980-12-10 1982-06-16 Feldmühle Aktiengesellschaft Hüftgelenkpfanne
EP0053794A3 (de) * 1980-12-10 1982-08-18 Feldmühle Aktiengesellschaft Hüftgelenkpfanne
FR2705883A1 (fr) * 1993-06-04 1994-12-09 Revest Michel Prothèse articulaire à roulement sphérique à billes.

Also Published As

Publication number Publication date
LU63465A1 (de) 1972-04-04
NL159879B (nl) 1979-04-17
NL7109237A (de) 1972-01-12
GB1334584A (en) 1973-10-24
DE2134316B2 (de) 1976-11-25
BE769110A (fr) 1971-12-28
FR2096895B1 (de) 1973-01-12
DE2134316A1 (de) 1972-01-13
IT942440B (it) 1973-03-20

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