FR2320459A1 - Joint coulissant et son procede de realisation - Google Patents

Joint coulissant et son procede de realisation

Info

Publication number
FR2320459A1
FR2320459A1 FR7623700A FR7623700A FR2320459A1 FR 2320459 A1 FR2320459 A1 FR 2320459A1 FR 7623700 A FR7623700 A FR 7623700A FR 7623700 A FR7623700 A FR 7623700A FR 2320459 A1 FR2320459 A1 FR 2320459A1
Authority
FR
France
Prior art keywords
sliding joint
embodiment process
joint
sliding
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.)
Granted
Application number
FR7623700A
Other languages
English (en)
Other versions
FR2320459B1 (fr
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of FR2320459A1 publication Critical patent/FR2320459A1/fr
Application granted granted Critical
Publication of FR2320459B1 publication Critical patent/FR2320459B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C31/00—Bearings for parts which both rotate and move linearly
    • F16C31/02—Sliding-contact bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/20—Thermal properties
    • F16C2202/22—Coefficient of expansion
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/60—Polyamides [PA]
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/76—Polyolefins, e.g. polyproylene [PP]
    • F16C2208/78—Polyethylene [PE], e.g. ultra-high molecular weight polyethylene [UHMWPE]
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49641—Linear bearing
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/4971—Nonmetallic bearing element
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/4984—Retaining clearance for motion between assembled parts
    • Y10T29/49845—Retaining clearance for motion between assembled parts by deforming interlock
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49909—Securing cup or tube between axially extending concentric annuli
    • Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Sliding-Contact Bearings (AREA)
FR7623700A 1975-08-04 1976-08-03 Joint coulissant et son procede de realisation Granted FR2320459A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/601,481 US4033020A (en) 1975-08-04 1975-08-04 Method of making a slip joint

Publications (2)

Publication Number Publication Date
FR2320459A1 true FR2320459A1 (fr) 1977-03-04
FR2320459B1 FR2320459B1 (fr) 1982-11-19

Family

ID=24407649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7623700A Granted FR2320459A1 (fr) 1975-08-04 1976-08-03 Joint coulissant et son procede de realisation

Country Status (16)

Country Link
US (1) US4033020A (fr)
JP (1) JPS5219844A (fr)
AU (1) AU498194B2 (fr)
BE (1) BE844650A (fr)
BR (1) BR7604979A (fr)
CA (1) CA1053448A (fr)
DE (1) DE2635120C2 (fr)
DK (1) DK349376A (fr)
ES (1) ES450446A1 (fr)
FR (1) FR2320459A1 (fr)
GB (1) GB1542127A (fr)
IE (1) IE42898B1 (fr)
IT (1) IT1062702B (fr)
LU (1) LU75487A1 (fr)
NL (1) NL7608462A (fr)
SE (1) SE425426B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004992A1 (fr) * 1978-04-14 1979-10-31 N.V. Gereedschapswerktuigenindustrie Hembrug Palier à glissement précontraint et méthode de fabrication et de montage de celui-ci
EP0118278A1 (fr) * 1983-02-28 1984-09-12 International Business Machines Corporation Palier à pression de fluide engendrée par vibrations
EP0249892A2 (fr) * 1986-06-20 1987-12-23 Emil Wohlhaupter & Co. Outil d'alésage
EP0626301A2 (fr) * 1993-05-27 1994-11-30 General Motors Corporation Joint universel pour arbre de direction
FR2710116A1 (fr) * 1993-09-16 1995-03-24 Walterscheid Gmbh Gkn Compensateur de longueur à deux profilés, pour des arbres de transmission.
EP0884206A1 (fr) * 1997-06-13 1998-12-16 Mecaplast Sam Procédé d'amélioration des qualités de coulissement d'un chariot sur un rail et dispositif de mise en oeuvre du procédé

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852510C2 (de) * 1978-12-05 1983-10-27 Kunz Maschinen- und Apparatebau GmbH, 7850 Lörrach Vorrichtung zum Kuppeln von Wickelstäben
AT372314B (de) * 1981-07-03 1983-09-26 Supervis Ets Lenkspindel fuer lenkvorrichtungen bei kraftfahrzeugen
DE3140587A1 (de) * 1981-10-13 1983-04-21 Jörg 4800 Bielefeld Schwarzbich Schiebeelement mit einer, einem labilen gleichgewicht entsprechender position, deren lage einstellbar ist
US4561799A (en) * 1982-02-08 1985-12-31 Grumman Aerospace Corp. Torque joint
US4513488A (en) * 1982-02-08 1985-04-30 Grumman Aerospace Corporation Method of fabricating a torque joint
US4496333A (en) * 1982-07-21 1985-01-29 Rockwell International Corporation Low friction power takeoff shaft
US4460182A (en) * 1983-07-15 1984-07-17 Rockwell International Corporation Square sealing member for slip-type drive shaft
US4573946A (en) * 1983-07-15 1986-03-04 Rockwell International Corporation Driveline
US4580996A (en) * 1983-07-15 1986-04-08 Rockwell International Corporation Driveline apparatus
AT384405B (de) * 1985-07-22 1987-11-10 Supervis Ets Laengenveraenderbare lenkspindel fuer lenkvorrichtungen bei kraftfahrzeugen
US5085289A (en) * 1988-09-09 1992-02-04 Chance John H Shock-absorbing resilient coupling
DE3943535C2 (de) * 1989-06-24 1994-11-24 Gkn Automotive Ag Verbindungsanordnung
DE4004104A1 (de) * 1990-02-10 1991-08-14 Diehl Gmbh & Co Verbindungseinrichtung fuer das schaltgestaenge von kraftfahrzeugen
US5484264A (en) * 1991-12-18 1996-01-16 Brunswick Corporation Torsionally twisting propeller drive sleeve and adapter
US5244348A (en) * 1991-12-18 1993-09-14 Brunswick Corporation Propeller drive sleeve
DE4427532C2 (de) * 1993-09-16 1998-07-23 Walterscheid Gmbh Gkn Längenausgleich mit zwei Profilen für Antriebswellen
US5720102A (en) * 1995-01-27 1998-02-24 Dana Corporation Method for making a drive line slip joint assembly
US5630704A (en) * 1996-03-19 1997-05-20 Brunswick Corporation Propeller drive sleeve with asymmetric shock absorption
US5902186A (en) * 1997-08-08 1999-05-11 Douglas Autotech Corp. Intermediate shaft assembly for steering columns
US5903965A (en) * 1997-09-04 1999-05-18 Dana Corporation Method for applying a low friction coating on a splinned slip joint
DE19750005C1 (de) * 1997-11-12 1999-04-22 Supervis Ets Längenveränderbare Lenkspindel für Lenkvorrichtungen bei Kraftfahrzeugen
US6473968B1 (en) * 1999-11-18 2002-11-05 Ford Global Tech., Inc. Telescoping joint assembly and a method for making the same
DE10056619A1 (de) * 2000-11-15 2002-05-29 Wiederholt V W Werk Vorrichtung zur Höhenverstellung eines Lenkrades eines Fahrzeugs sowie zur Übertragung eines Drehmoments von dem Lenkrad auf ein Lenkgestänge
JP2003049754A (ja) * 2001-08-08 2003-02-21 Denso Corp スタータ
US6698076B2 (en) * 2002-01-07 2004-03-02 Meritor Heavy Vehicle Systems, Llc Drive shaft manufacturing process
US7244186B2 (en) * 2002-03-26 2007-07-17 Hauck Anthony L Flexible couplings
WO2005099059A2 (fr) * 2004-04-05 2005-10-20 Rizzuto Salvatore A Jr Connexion a joint coulissant conçue pour conduit d'electricite vers des coffrets de branchement
DE102004037204B4 (de) * 2004-07-30 2006-09-21 Diehl Bgt Defence Gmbh & Co. Kg Lageranordnung für die Ruderblätter eines Flugkörpers
DE102004052796A1 (de) * 2004-11-02 2006-05-11 Volkswagen Ag Antriebswelle mit einer Wärmeabschirmhülse
US8230710B2 (en) * 2005-03-25 2012-07-31 American Axle & Manufacturing, Inc. Method for forming a slip joint assembly with coated splines
US20070006634A1 (en) * 2005-06-28 2007-01-11 Mnp Corporation Crimped tube coupling and a crimping apparatus for making a crimped tube coupling
FR2917474B1 (fr) * 2007-06-18 2009-08-07 Skf Aerospace France Soc Par A Arbre de transmission de mouvements et/ou d'efforts en rotation
US20090215543A1 (en) * 2008-02-25 2009-08-27 American Axle & Manufacturing, Inc. Slip yoke with internal splines having permanent coating and related method
DE102008022191B4 (de) * 2008-05-06 2010-11-04 Isringhausen Gmbh & Co. Kg Linearführung
DE102008049825B4 (de) * 2008-10-01 2017-04-06 Thyssenkrupp Presta Aktiengesellschaft Gleithülse
US9357983B2 (en) * 2010-06-11 2016-06-07 Carefusion 2200, Inc. Method of making reduced backlash joint
US9028164B2 (en) 2012-03-08 2015-05-12 Dana Automotive Systems Group, Llc Magnetic pulse formed vehicle driveshaft and method of making same
DE102017214895B4 (de) * 2017-08-25 2020-06-18 Veyhl Gmbh Verfahren zum Herstellen einer teleskopierbaren Hubsäule, insbesondere für Möbel
DE102017123161A1 (de) 2017-10-05 2019-04-11 Thyssenkrupp Ag Verfahren zur Herstellung von Baugruppen mit axial verschiebbaren Bauteilen
DE102017123769A1 (de) 2017-10-12 2019-04-18 Thyssenkrupp Ag Verfahren zur Herstellung von Baugruppen mit axial verschiebbaren Wellenteilen einer Lenkwelle
DE102017123770A1 (de) 2017-10-12 2019-04-18 Thyssenkrupp Ag Verfahren zur Herstellung von Baugruppen mit axial verschiebbaren Bauteilen
JP2020143766A (ja) * 2019-03-08 2020-09-10 株式会社ジェイテクト スプライン伸縮軸の製造方法及びスプライン伸縮軸
DE102021113290A1 (de) 2021-05-21 2022-11-24 Logicdata Electronic & Software Entwicklungs Gmbh Ausgleichselement, Teleskopsäule und Verfahren zur Herstellung einer Teleskopsäule

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126613A (en) * 1964-03-31 litsky
FR1469822A (fr) * 1966-02-22 1967-02-17 Dana Corp Liaison coulissante perfectionnée transmettrice de couple
FR1508456A (fr) * 1966-01-12 1968-01-05 Birfield Eng Ltd Perfectionnements aux arbres d'entraînement
FR1536260A (fr) * 1967-05-26 1968-08-16 Dana Corp Joint coulissant à cannelures, plus particulièrement pour la transmission d'un couple dans les véhicules

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827267A (en) * 1927-02-04 1931-10-13 Gen Motors Res Corp Method of making resilient joints
US1835575A (en) * 1929-02-27 1931-12-08 Gen Motors Corp Rubber bushing
US2122839A (en) * 1936-10-15 1938-07-05 Guy And Murton Inc Resilient bushing and method of making the same
US2199926A (en) * 1937-07-19 1940-05-07 Borg Warner Resilient slip joint
US2324997A (en) * 1941-11-04 1943-07-20 Firestone Tire & Rubber Co Resilient coupling
US3085312A (en) * 1959-04-09 1963-04-16 Southwest Products Co Method of making bearings
US3066503A (en) * 1961-05-23 1962-12-04 Gen Tire & Rubber Co Formed tube coupling
US3193910A (en) * 1962-10-01 1965-07-13 Southwest Products Co Method of making bearings
DE1911806U (de) * 1963-01-11 1965-03-11 Walterscheid Kg Jean Ausziehbare gelenkwelle.
US3400558A (en) * 1965-04-09 1968-09-10 Dana Corp Low friction sliding and torque transmitting connection
US3550232A (en) * 1968-05-10 1970-12-29 Lear Siegler Inc Method for making rod end bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126613A (en) * 1964-03-31 litsky
FR1508456A (fr) * 1966-01-12 1968-01-05 Birfield Eng Ltd Perfectionnements aux arbres d'entraînement
FR1469822A (fr) * 1966-02-22 1967-02-17 Dana Corp Liaison coulissante perfectionnée transmettrice de couple
FR1536260A (fr) * 1967-05-26 1968-08-16 Dana Corp Joint coulissant à cannelures, plus particulièrement pour la transmission d'un couple dans les véhicules

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004992A1 (fr) * 1978-04-14 1979-10-31 N.V. Gereedschapswerktuigenindustrie Hembrug Palier à glissement précontraint et méthode de fabrication et de montage de celui-ci
EP0118278A1 (fr) * 1983-02-28 1984-09-12 International Business Machines Corporation Palier à pression de fluide engendrée par vibrations
EP0249892A2 (fr) * 1986-06-20 1987-12-23 Emil Wohlhaupter & Co. Outil d'alésage
EP0249892A3 (en) * 1986-06-20 1988-02-17 Emil Wohlhaupter & Co. Rotational bearing
EP0626301A2 (fr) * 1993-05-27 1994-11-30 General Motors Corporation Joint universel pour arbre de direction
EP0626301A3 (fr) * 1993-05-27 1995-10-11 Gen Motors Corp Joint universel pour arbre de direction.
FR2710116A1 (fr) * 1993-09-16 1995-03-24 Walterscheid Gmbh Gkn Compensateur de longueur à deux profilés, pour des arbres de transmission.
US5538474A (en) * 1993-09-16 1996-07-23 Gkn Walterscheid Gmbh Driveshaft length adjusting mechanism with two profiles
ES2113273A1 (es) * 1993-09-16 1998-04-16 Walterscheid Gmbh Gkn Dispositivo de compensacion de longitud con dos perfiles para ejes de accionamiento.
EP0884206A1 (fr) * 1997-06-13 1998-12-16 Mecaplast Sam Procédé d'amélioration des qualités de coulissement d'un chariot sur un rail et dispositif de mise en oeuvre du procédé
FR2764654A1 (fr) * 1997-06-13 1998-12-18 Mecaplast Sam Procede d'amelioration des qualites de coulissement d'un chariot sur un rail et dispositif de mise en oeuvre du procede
US6314682B2 (en) 1997-06-13 2001-11-13 Mecaplast Sam Process for improving the sliding qualities of a carriage on a rail and device for implementing the process

Also Published As

Publication number Publication date
CA1053448A (fr) 1979-05-01
SE7608714L (sv) 1977-02-05
DK349376A (da) 1977-02-05
IT1062702B (it) 1984-10-31
SE425426B (sv) 1982-09-27
DE2635120C2 (de) 1981-12-10
IE42898B1 (en) 1980-11-05
AU498194B2 (en) 1979-02-15
AU1648776A (en) 1978-02-09
GB1542127A (en) 1979-03-14
BR7604979A (pt) 1977-08-09
JPS5219844A (en) 1977-02-15
DE2635120A1 (de) 1977-02-10
US4033020A (en) 1977-07-05
JPS6128845B2 (fr) 1986-07-03
ES450446A1 (es) 1977-12-01
BE844650A (fr) 1976-11-16
IE42898L (en) 1977-02-04
FR2320459B1 (fr) 1982-11-19
NL7608462A (nl) 1977-02-08
LU75487A1 (fr) 1977-03-02

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