US3851297A - Substrate connector - Google Patents

Substrate connector Download PDF

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Publication number
US3851297A
US3851297A US00364851A US36485173A US3851297A US 3851297 A US3851297 A US 3851297A US 00364851 A US00364851 A US 00364851A US 36485173 A US36485173 A US 36485173A US 3851297 A US3851297 A US 3851297A
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US
United States
Prior art keywords
spring body
connector
spring
wire
turns
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 - Lifetime
Application number
US00364851A
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English (en)
Inventor
G Munro
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.)
TE Connectivity Corp
Original Assignee
AMP 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 AMP Inc filed Critical AMP Inc
Priority to US05/502,996 priority Critical patent/US3930308A/en
Application granted granted Critical
Publication of US3851297A publication Critical patent/US3851297A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/33—Contact members made of resilient wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/87—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting automatically by insertion of rigid printed or like structures

Definitions

  • the ipvention concerns connectors having an elongate spring body of elastomer or formed as a tubular spring about which a single layer wire coil is wound.
  • the coil 7 Claims, 8 Drawing Figures This invention relates to electrical connectors and their method of manufacture. It is particularly but not exclusively concerned with connectors for connecting to or interconnecting lamina circuits such as are formed on printed circuit boards or substrates.
  • An electrical connector comprises an elongate spring body having a generally uniform cross-section, which is resiliently deformable transversely of its length and which has discrete conductive paths disposed in insulating spaced relationship around the body in which each path comprises a conductor wire of generally C-shaped turn form extending around part only of the circumferential periphery of and bonded to the body, exposed surface portions of the wire turns defining at least'a row of contact points distal from and extending along the spring body.
  • the wire of each C-shaped turn of at least one of the ends of theC-shape extends freely away from the spring body as a lead.
  • the C-shaped turns extend around more than half of the circumferential periphery of the body and present diametrically opposite rows of contact points extending longitudinally of the body.
  • the spring body may be formed of elastomeric insulating material or for example it may be formed as a tubular spring of C-shaped cross-section. Such a spring may be ofmetal in which case the spring turns are insulated from the metal.
  • a single layer coil of conductor wire is wound around the spring body to extend longitudinally in closely spaced turns, the turns being bonded to the body and the coil being cut longitudinally of the body to separate adjacent turns which define the discrete conductive paths.
  • the spring body is initially located beside a former body extending longitudinally of and projecting laterally from the spring body, the coil being wound in turns about the two bodies and cut longitudinally of the coil at turn portions around the former body, the former body being removed and wire portions extending from one or both ends of each of the separated turns.
  • a pair of connectors may be made simultaneously by disposing a former body between a pair of spring bodies, and winding the coil about the three bodies. The turns are then cut longitudinally of the former at locations between the spring bodies.
  • the spring body is suitably elastically deformed prior to winding the coil in the same sense as the lead of the coil, and is held in that condition until after the coil cutting operation when the deformation is relaxed.
  • the coilturns are thus flattened.
  • FIG. I is a perspective view of a connector
  • FIG. 2 is an end view of the connector of FIG. 1;
  • FIG. 3 is a fragmentary perspective view of a printed circuit board assembly including a connector according to FIGS. 1 and 2;
  • FIG. 4 is an enlarged fragmentary longitudinal section of part of the connector of FIGS. 1 and 2;
  • FIG. 5 is a fragmentary perspective view of a stage in the manufacture of a connector according to FIGS. I and 2;
  • FIG. 6 is a sectional view of a printed circuit edge connector embodying connectors according to FIGS. 1 and 2;
  • FIG. 7 is a fragmentary perspective view partially sectioned of a connector block assembly embodying the invention.
  • FIG. 8 is an elevation of a spring body in relaxed, and deformed conditions established during manufacture of a connector according to the invention.
  • the connector of FIG. 1 comprises a tubular spring member 1 having a generally C-shaped cross-section with a longitudinally extending open seam 2 which may be closed by resilient deformation of the spring.
  • the tubular spring is of metal but alternatively it could be of resilient insulating material or a body of elastomeric insulating material could be substituted for the tubular spring.
  • a series of parallel wires 3 extend generally tangentially from the spring 1 and the wires terminate with arcuate portions 4 extending around and bonded to the tubular spring 1 in insulating spaced relationship.
  • the wires are suitably insulated with a varnish type insulation and diametrically opposite parts of the arcuate portions 4 are cleaned of insulation on sides distal from the spring 1.
  • the bare metal exposed is spot plated with contact metal such as gold or tin at 7 to provide rows 5 of contact points 6.
  • the adhesive bonding material as seen in FIG. 4 secures the arcuate portions in insulating spaced relationship and allows flexure of the arcuate portions 4 concomitant with flexure of the tubular spring 1.
  • the connector of FIGS. 1 and 2 is clamped between opposed faces of adjacent circuit boards 9 with the tubular spring I compressively flexed between the boards.
  • Groups of contact points 6 engage respective contacts of the circuit boards to effect desired interconnections between the upper and lower boards and to input or output circuits through the lead wires 3.
  • tubular springs l are suitably sprung onto opposite ends of a former 10 adapted to open the spring scams 2.
  • the former is provided with longitudinal grooves II at opposite sides for wire cutting purposes as will be described.
  • the external arcuate surfaces of the springs are coated with adhesive 8, FIG. 4, and a single layer coil of wire wound around the former in a series of closely spaced turns.
  • desired contact points 6, FIG. 4 are cleaned by a skimming or grinding process and the exposed Wire portions spot plated with a suitable contact metal 8, such as gold or tin.
  • the wire coil is cut along the grooves 11 to separate the two connectors which are then removed from the former 10.
  • the wire ends 3 extend from both sides of the open seam 2 of each connector, and due to the expansion of these seams during the manufacture, the arcuate portions 4 of the wires extend around more than a semicircle when the spring is relaxed.
  • the contact rows are suitably diametrically opposite in this condition.
  • the wire ends 3 may be selectively removed or grouped into bundles according to the particular circuit connections required.
  • a pair of connectors according to FIGS. 1 and 2 is positioned one on each side of a slot 12 in a housing 13.
  • the springs l are arranged with arcuate portions projecting into the slot 12 with the rows of contact points 6 disposed to engage opposite sides of a printed circuit board 14.
  • the wire ends 3 lead out from the housing for circuitry connection purposes.
  • the connector spring body is contained in an insulating housing comprising identical halves 16, 17 snapfitting together and about the spring body 1.
  • Each housing half I6, 17 contain means, not shown, to engage ends of the spring body 1 at each side of the seam and arranged on closure of the two housing halves l6, 17 together to displace marginal portions of the spring body on each side of the seam relatively laterally in order to flatten the coil turns 4.
  • Each housing half I6, 17 has a groove-like recess 18, I9 receiving the spring body 1, and a plurality of passageways 20, 21 extending transversely of the recess and intersecting the recess generally tangentially of the spring body.
  • Conductor wires 22 may be threaded into the passageways and clamped in position by resilient pressure of the spring body 1 which provides mechanical retention and contact pressure.
  • Such an arrangement is applicable to flat flexible or tape cables, in which case a slot is provided for reception of the multiconductor cable in place of a plurality of passageways 22.
  • FIG. 8 a spring body 1 of C-shaped section showing in broken lines 1 how it may be elastically deformed by lateral displacement on opposite sides of the seam prior to coil winding so that on relaxation afterwards, the helical coil turns are flattened.
  • the broken line position represents a single turn helix of the same pitch and lead sense as the coil winding.
  • An electrical connector comprising an elongate spring body having a generally uniform cross-section, which is resiliently deformable transversely of its length and which has discrete conductive paths disposed in insulating spaced relationship around the body, said conductive paths comprising a conductor wire coil wound around said spring body and being disposed in closely uniformly spaced turns along said body, said conductor wire being bonded to said body and having a portion removed from each said turn thereby forming said discrete conductive paths, each path being of generally C-shaped turn form extending around part only of the circumferential periphery of the spring body, each path further comprising a lead portion extending freely away from said spring body, said lead portion being an integral part of the coil wound conductor wire, and exposed surface portions of the wire on each said turn defining at least a row of contact points distal from and extending along the spring body.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Multi-Conductor Connections (AREA)
US00364851A 1972-06-17 1973-05-29 Substrate connector Expired - Lifetime US3851297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/502,996 US3930308A (en) 1973-05-29 1974-09-03 Substrate connectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2848372A GB1382691A (en) 1972-06-17 1972-06-17 Electrical connectors and their method of manufacture

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/502,996 Division US3930308A (en) 1973-05-29 1974-09-03 Substrate connectors

Publications (1)

Publication Number Publication Date
US3851297A true US3851297A (en) 1974-11-26

Family

ID=10276361

Family Applications (1)

Application Number Title Priority Date Filing Date
US00364851A Expired - Lifetime US3851297A (en) 1972-06-17 1973-05-29 Substrate connector

Country Status (13)

Country Link
US (1) US3851297A (hr)
JP (1) JPS5512708B2 (hr)
AR (1) AR195014A1 (hr)
AU (1) AU5608573A (hr)
BE (1) BE800926A (hr)
BR (1) BR7304479D0 (hr)
CA (1) CA985388A (hr)
DE (1) DE2329426C3 (hr)
ES (1) ES415872A1 (hr)
FR (1) FR2189897B1 (hr)
GB (1) GB1382691A (hr)
IT (1) IT988757B (hr)
NL (1) NL7308186A (hr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951493A (en) * 1974-08-14 1976-04-20 Methode Manufacturing Corporation Flexible electrical connector and method of making same
US3985413A (en) * 1973-11-26 1976-10-12 Amp Incorporated Miniature electrical connector
EP0036933A2 (de) * 1980-03-28 1981-10-07 Bohdan Ulrich Steckverbinder und Verwendung desselben zur Herstellung einer lösbaren elektrischen Verbindung
US4820170A (en) * 1984-12-20 1989-04-11 Amp Incorporated Layered elastomeric connector and process for its manufacture
US4840569A (en) * 1988-06-27 1989-06-20 Itt Corporation High density rotary connector
US4897054A (en) * 1986-12-19 1990-01-30 Amp Incorporated Modular circuit board bussing connector
US5013248A (en) * 1989-09-19 1991-05-07 Amp Incorporated Multicircuit connector assembly
US5161981A (en) * 1992-03-10 1992-11-10 Amp Incorporated Foldable stacking connector
US5230632A (en) * 1991-12-19 1993-07-27 International Business Machines Corporation Dual element electrical contact and connector assembly utilizing same
US5299939A (en) * 1992-03-05 1994-04-05 International Business Machines Corporation Spring array connector
US5475921A (en) * 1993-08-04 1995-12-19 The Wiremold Company Method for making contact assembly
US5540594A (en) * 1994-06-29 1996-07-30 The Whitaker Corporation Elastomeric connector having increased compression range
WO1998040931A1 (en) * 1997-03-10 1998-09-17 Molex Incorporated Wire-wrap connector
US5999414A (en) * 1997-03-14 1999-12-07 California Institute Of Technology Physically separating printed circuit boards with a resilient, conductive contact
US20040005791A1 (en) * 2002-07-02 2004-01-08 Fujitsu Component Limited Connector
US20050014394A1 (en) * 2003-05-28 2005-01-20 Infineon Technologies Contact-connection device for electronic circuit units and production method
US20070249921A1 (en) * 2006-04-21 2007-10-25 Henning Groll Biological testing system
US20080057757A1 (en) * 2006-08-29 2008-03-06 Japan Aviation Electronics Industry, Limited Electrical connector having a space allowing an elastic connecting member to be escaped
US20080295523A1 (en) * 2007-06-01 2008-12-04 Lane Daniel Dicken Machined Spring With Integral Retainer For Closed Cycle Cryogenic Coolers
US20110114366A1 (en) * 2009-11-13 2011-05-19 Lane Daniel Dicken Spring with Multiple Conducting Coils

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911653A (en) * 1989-08-23 1990-03-27 Beta Phase, Inc. Rotation lock and wipe connector
EP0444396B2 (de) † 1990-01-30 2000-11-02 AMPHENOL-TUCHEL ELECTRONICS GmbH Kontaktiereinrichtung für ein SI-Modul

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480142A (en) * 1945-09-21 1949-08-30 Lager Fred Electric contact
US2858515A (en) * 1954-08-12 1958-10-28 Westinghouse Electric Corp Electrical connector with resilient gripping means
US2980874A (en) * 1957-09-16 1961-04-18 John W Tarbox Electric winding
US3059211A (en) * 1960-05-24 1962-10-16 Thomas & Betts Corp Electrical connector for flat conductor carriers
US3188601A (en) * 1962-08-15 1965-06-08 Litton Prec Products Inc Electrical connector for tape-like electrical cable
US3221286A (en) * 1961-07-31 1965-11-30 Sperry Rand Corp Connector for printed circuit strip transmission line
US3307139A (en) * 1965-05-12 1967-02-28 Lockheed Aircraft Corp Flat cable connector
US3362005A (en) * 1967-06-26 1968-01-02 Berg Electronics Inc Hinge type connector for circuit boards
US3401369A (en) * 1966-06-07 1968-09-10 Ibm Connector
US3444503A (en) * 1967-06-07 1969-05-13 Bell Telephone Labor Inc Connector for electrical circuit board
US3533049A (en) * 1966-11-09 1970-10-06 Mb Metals Ltd Strip cable connector
US3818414A (en) * 1971-03-12 1974-06-18 Plessey Handel Investment Ag Electrical connectors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754252A (fr) * 1969-07-31 1970-12-31 Bunker Ramo Receptacle a force d'introduction nulle pour elements plats porteurs decircuits

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480142A (en) * 1945-09-21 1949-08-30 Lager Fred Electric contact
US2858515A (en) * 1954-08-12 1958-10-28 Westinghouse Electric Corp Electrical connector with resilient gripping means
US2980874A (en) * 1957-09-16 1961-04-18 John W Tarbox Electric winding
US3059211A (en) * 1960-05-24 1962-10-16 Thomas & Betts Corp Electrical connector for flat conductor carriers
US3221286A (en) * 1961-07-31 1965-11-30 Sperry Rand Corp Connector for printed circuit strip transmission line
US3188601A (en) * 1962-08-15 1965-06-08 Litton Prec Products Inc Electrical connector for tape-like electrical cable
US3307139A (en) * 1965-05-12 1967-02-28 Lockheed Aircraft Corp Flat cable connector
US3401369A (en) * 1966-06-07 1968-09-10 Ibm Connector
US3533049A (en) * 1966-11-09 1970-10-06 Mb Metals Ltd Strip cable connector
US3444503A (en) * 1967-06-07 1969-05-13 Bell Telephone Labor Inc Connector for electrical circuit board
US3362005A (en) * 1967-06-26 1968-01-02 Berg Electronics Inc Hinge type connector for circuit boards
US3818414A (en) * 1971-03-12 1974-06-18 Plessey Handel Investment Ag Electrical connectors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Dunman, Printed Circuit Connector IBM Technical Disclosure Bulletin, Vol. 7 No. 3, page 182, August 1964. *

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985413A (en) * 1973-11-26 1976-10-12 Amp Incorporated Miniature electrical connector
US3951493A (en) * 1974-08-14 1976-04-20 Methode Manufacturing Corporation Flexible electrical connector and method of making same
EP0036933A2 (de) * 1980-03-28 1981-10-07 Bohdan Ulrich Steckverbinder und Verwendung desselben zur Herstellung einer lösbaren elektrischen Verbindung
EP0036933A3 (de) * 1980-03-28 1981-12-02 Bohdan Ulrich Steckverbinder und Verwendung desselben zur Herstellung einer lösbaren elektrischen Verbindung
US4820170A (en) * 1984-12-20 1989-04-11 Amp Incorporated Layered elastomeric connector and process for its manufacture
US4897054A (en) * 1986-12-19 1990-01-30 Amp Incorporated Modular circuit board bussing connector
US4840569A (en) * 1988-06-27 1989-06-20 Itt Corporation High density rotary connector
US5013248A (en) * 1989-09-19 1991-05-07 Amp Incorporated Multicircuit connector assembly
US5230632A (en) * 1991-12-19 1993-07-27 International Business Machines Corporation Dual element electrical contact and connector assembly utilizing same
US5299939A (en) * 1992-03-05 1994-04-05 International Business Machines Corporation Spring array connector
US5161981A (en) * 1992-03-10 1992-11-10 Amp Incorporated Foldable stacking connector
US5475921A (en) * 1993-08-04 1995-12-19 The Wiremold Company Method for making contact assembly
US5540594A (en) * 1994-06-29 1996-07-30 The Whitaker Corporation Elastomeric connector having increased compression range
WO1998040931A1 (en) * 1997-03-10 1998-09-17 Molex Incorporated Wire-wrap connector
US5823792A (en) * 1997-03-10 1998-10-20 Molex Incorporated Wire-wrap connector
US5999414A (en) * 1997-03-14 1999-12-07 California Institute Of Technology Physically separating printed circuit boards with a resilient, conductive contact
US20040005791A1 (en) * 2002-07-02 2004-01-08 Fujitsu Component Limited Connector
US7121837B2 (en) * 2002-07-02 2006-10-17 Fujitsu Component Limited Connector
US20050014394A1 (en) * 2003-05-28 2005-01-20 Infineon Technologies Contact-connection device for electronic circuit units and production method
US20070249921A1 (en) * 2006-04-21 2007-10-25 Henning Groll Biological testing system
US8398443B2 (en) * 2006-04-21 2013-03-19 Roche Diagnostics Operations, Inc. Biological testing system and connector therefor
US20080057757A1 (en) * 2006-08-29 2008-03-06 Japan Aviation Electronics Industry, Limited Electrical connector having a space allowing an elastic connecting member to be escaped
US7654827B2 (en) * 2006-08-29 2010-02-02 Japan Aviation Electronics Industry, Limited Electrical connector having a space allowing an elastic connecting member to be escaped
US20080295523A1 (en) * 2007-06-01 2008-12-04 Lane Daniel Dicken Machined Spring With Integral Retainer For Closed Cycle Cryogenic Coolers
US8127560B2 (en) 2007-06-01 2012-03-06 Carleton Life Support Systems, Inc. Machined spring with integral retainer for closed cycle cryogenic coolers
US20110114366A1 (en) * 2009-11-13 2011-05-19 Lane Daniel Dicken Spring with Multiple Conducting Coils
US8378218B2 (en) 2009-11-13 2013-02-19 Carleton Life Support Systems, Inc. Spring with multiple conducting coils

Also Published As

Publication number Publication date
CA985388A (en) 1976-03-09
DE2329426C3 (de) 1975-04-24
ES415872A1 (es) 1976-06-01
FR2189897B1 (hr) 1977-02-11
BE800926A (fr) 1973-12-14
AU5608573A (en) 1974-11-28
JPS5512708B2 (hr) 1980-04-03
AR195014A1 (es) 1973-08-30
IT988757B (it) 1975-04-30
NL7308186A (hr) 1973-12-19
JPS4962986A (hr) 1974-06-18
DE2329426B2 (de) 1974-09-12
FR2189897A1 (hr) 1974-01-25
GB1382691A (en) 1975-02-05
BR7304479D0 (pt) 1974-08-22
DE2329426A1 (de) 1974-01-03

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