EP0102156A2 - Anschlusselement mit Isolationsverschiebung für einen elektrischen Verbinder und Umgebungsabdichtungsmittel dafür - Google Patents

Anschlusselement mit Isolationsverschiebung für einen elektrischen Verbinder und Umgebungsabdichtungsmittel dafür Download PDF

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Publication number
EP0102156A2
EP0102156A2 EP83303933A EP83303933A EP0102156A2 EP 0102156 A2 EP0102156 A2 EP 0102156A2 EP 83303933 A EP83303933 A EP 83303933A EP 83303933 A EP83303933 A EP 83303933A EP 0102156 A2 EP0102156 A2 EP 0102156A2
Authority
EP
European Patent Office
Prior art keywords
terminal
wire
conductor
cable
housing
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
EP83303933A
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English (en)
French (fr)
Other versions
EP0102156B1 (de
EP0102156A3 (en
Inventor
Helen Dechelette
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.)
Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Publication of EP0102156A2 publication Critical patent/EP0102156A2/de
Publication of EP0102156A3 publication Critical patent/EP0102156A3/en
Application granted granted Critical
Publication of EP0102156B1 publication Critical patent/EP0102156B1/de
Expired 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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/053—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables using contact members penetrating insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency

Definitions

  • This invention relates generally to electrical connectors, and specifically, to connectors having the capability of terminating electrical cable or wiring by the method of insulation displacement.
  • Electrical connectors have become widely accepted as a preferred means for interconnecting the circuitry components of electrically operated products and equipment. In-such applications, providing for the facile connection and disconnection of cable or wire through the use of connectors permits convenience of assembly and maintenance as well as versatility in design.
  • Connectors in current use are of diverse construction.
  • a common arrangement includes a dielectric housing fitted with a plurality of stamped and formed conductive terminals to which insulated multi-conductor cable or wiring may be electrically connected.
  • Numerous terminal configurations are likewise available, suited to the specific requirements of the application.
  • a preferred terminal in many applications is one which has the capability of establishing electrical contact with the conductors of the cable by displacement of the insulative coating of the conductors, obviating the need to perform the separate step of stripping the insulative coating.
  • US-A-4,217,022 discloses an insulation displacement terminal which is representative of the type of terminal currently in widespread use.
  • these terminals provide a narrow slot which receives an insulation covered wire, severs the insulation covering of the wire in the process, and establishes, automatically, an electrical connection between the terminal and the central core of the wire.
  • This is contrasted with the self-piercing type of terminals which usually have sections in the form of teeth that pierce the insulation and enter the metallic core when the terminal is clinched or secured to the wire.
  • Both the self-piercing and insulation displacement terminals suffer from a number of disadvantages.
  • both techniques have limitations in terms of the acceptable wire dimensions which may be used in connection with a specific terminal.
  • currently known terminals generally require a transverse actuating force to be applied in order to establish the electrical connection. That is, a force must be applied transversely to the length of the wire requiring the wire to be accessible to the transversely applied force at the terminal.
  • a force must be applied transversely to the length of the wire requiring the wire to be accessible to the transversely applied force at the terminal.
  • a further limitation of the prior art resides in the difficulties associated with sealing a conventional connector housing against environmental degrading of the electrical connections contained within it. This limitation is particularly present in the case of conventional insulation displacement connectors which, as heretofore discussed, require transverse accessibility to the wire in the region of the terminal during the final wire termination process.
  • the present invention provides an insulation displacement terminal including a body positionable about an insulation covered wire, said body including an insulation displacing edge characterized by means for causing said displacing edge to move into said insulation covering in a direction generally transverse to the length of said wire in response to an actuating force applied to said body generally parallel to the length of said wire.
  • the terminal 10 is of the box-type, formed from a folded sheet metal blank (not shown).
  • the terminal 10 has a plain, rectangular, first housing end portion 11, an intermediate collapsible portion 12, and a second housing end portion 13 which has a pair of cantilevered resilient contact beams 14 struck from each of two opposed side walls thereof.
  • the beams 14 define a female terminal adapted to mate with a male contact pin (not shown) introduced therebetween.
  • the intermediate collapsible portion 12 comprises a pair of opposed wall portions or contacting sections 15 each formed integrally with end portions 11 and 13 along a line of reduced width 16 such that sections 15 may be bent inwardly into a shallow V-shape.
  • Each section 15 is formed with a pair of generally V-shaped reinforcing ribs 17 and a pair of edge notches 18 positioned intermediately between the ribs 17.
  • the notches 18 and ribs 17 of each section 15 combine to define an axis 19 about which the section 15 may be bent.
  • a polygonal aperture 20 is formed in each of the contacting sections 15 with an assymetrical shape with respect to the axis of bending 19. In stamping of the terminal 10, the edges of the apertures 20 are suitably chamfered to possess a relative knife-like sharpness to the insulative coating of a typical electrical cable or wire.
  • Teeth 21 project from the edges of end portion 13 and serve to secure the terminal in position in a connector housing.
  • End portion 13 is also adapted with inwardly projecting wire stops 22 (only one of which can be seen) so as to constitute a stop for the end of a conductor wire inserted into end portion 11 of the terminal.
  • Protrusions 23 are pressed outwardly of the side walls of the end portion 13 for facilitating sliding of the end portion 13 within the cavity of a oonnector housing, in a manner which will be described in greater detail, hereinafter.
  • tab means 24 extend from the side walls of housing end portion 13 into the intermediate portion 12, each being configured with a pair of pivot points 25 for purposes which will likewise be discussed hereinafter.
  • FIG. 2 there is shown an exemplary connector assembly, designated generally by the reference numeral 30, suitable for utilization of the collapsible terminal 10 of Fig. 1.
  • the connector assembly 30 comprises a one-piece housing 31, a sealing means or gasket 32 and a gasket retainer 33.
  • Formed within the housing 31 are a plurality of cavities, designated generally by the reference numeral 34, corresponding in number to the number of circuits which the connector is capable of terminating.
  • Each cavity 34 is suitably dimensioned to slidingly receive a terminal 10.
  • the housing 31 is further adapted with an upstanding rim 35 for properly locating the gasket 32 and retainer 33.
  • Integrally formed latching arms 36 serve to secure the retainer 33 in compression with the gasket 32 when it is desired that the connector housing 31 be environmentally sealed.
  • Corresponding apertures 40 and 41 are likewise formed in the gasket 32 and retainer 33, respectively.
  • the wire 39 is illustrated as a discrete single-conductor wire having a conductive core 42 enveloped in a coating of insulation 43, although other types of wire such as ribbon cable, for example, are adaptable for use with the instant connector assembly 30 within the ordinary skill in the art.
  • each cavity 34 have a nominal depth approximately equal to the length of an unactuated terminal 105.
  • the terminal 10b is shown in abutment with the upper wall 37 of the housing 31 and with its lower end approximately co-planar with the lower surface of the housing 31.
  • Recesses 44 are provided in the walls of each cavity 34 defining a continuous ledge 45 around the cavity 34 at a depth approximately equal to the desired distance of travel of terminal end portion 13 upon actuation of the terminal 10.
  • the upper housing wall 37 is adapted with a plurality of integrally formed re-entrant strain relief tabs, designated generally by the reference numeral 46, extending inwardly into the cavities 34 in opposed pairs.
  • Each tab 46 has a shoulder portion 47 suitable for gripping of the wire 39 upon its termination to the connector 30.
  • the upper housing wall 37 is formed with integral ridges 48 extending upwardly around the periphery of each housing aperture 33.
  • the gasket retainer 33 is adapted with downwardly extending ridges 49 circumscribing the apertures 41 of the retainer 33.
  • the gasket 32 is formed with resiliently deformable collars 50 extending inwardly of the connector housing 31 at each gasket aperture 40 suitably dimensioned to grip the terminated wire 39 in sealing relationship.
  • one method of utlizing the terminal 10 entails bracing the connector housing 31 against a fixed surface (not shown).
  • a wire 39 is moved axially through an appropriate aperture 41 of the gasket retainer 33, then through a corresponding gasket aperture 40 and finally through an aligned housing aperture 38 whereupon it enters the teminal 10 and is urged into abutment with the stops 22 struck from end portion 13 of the terminal 10.
  • Terminal end portion 13 is moved axially inwardly of the housing cavity 34 by application of an axial force imposed upon the terminal 10 by a suitable insertion tool (not shown),
  • the insertion tool is dimensioned so as to be sliding received within the recess 44 of the cavity 34.
  • the cradling action of the aperture 20, as best shown in Figs. 5 and 6, maintains the wire 39 in position during this cutting operation. Because the apertures 20 are shaped assymetrically about the axis of bending 19, one side of each contacting section 15 penetrates the insulation 43 to a greater extent than the opposite side. In this manner less insertion force is required to collapse the terminal 10 into contact with the wire conductor 42. When the cutting edges of the apertures 20 contact the metallic core 42 of the wire 39, as illustrated in Fig. 5, a much greater resistance is encountered and the compression of the terminal 10 may be discontinued.
  • Terminal end portion 13 may be forced even further such that the ears 24 of housing portion 13 engage the contacting sections 15 at their midpoints causing a slight bowing of each section 15 about the pivot points 25 formed in the tabs 24.
  • the boding of the sections 15 facilitates a slight reorientation of the contacting line of force approaching a force which is normal to the surface of the wire conductor 43 and which remains extant after collapse of the terminal 10 due to the latent resilience of the terminal material.
  • the contacting sections 15 maintain a good electrical interface with the conductors 43 of the terminated wire 39 against the adverse effects of such transients as vibration, for example.
  • the bowing condition of the contacting sections 15 occurs at the same time that the insertion tool (not shown) bottoms on the ledge 45 formed in the cavity 34 thereby avoiding overstressing of the terminal 10.
  • the teeth 21 of terminal portion 13 thereafter seat into the walls of the cavities 34, maintaining the terminals 10 in fully collapsed and loaded condition within the connector housing 31.
  • Strain relieving of the wires 39 occurs simultaneously with electrical termination of the wires 39 to the connector 10.
  • re-entrant strain relief tabs 46 extend a sufficient length into the cavities 34 such that as the contacting sections 15 bend inwardly upon collapsing, they bear against the tabs 46 forcing the shoulders 47 to become imbedded in the insulation 42 of the wires 39.
  • the wires 39 are thereby firmly retained in the housing 31 against retrograde forces which might occur during use of the connector assembly.
  • Figs. 7a, 7b and 7c an alternative embodiment of the instant invention comprising the terminal 60 illustrated in Figs. 7a, 7b and 7c may be utilized.
  • terminal 60 is illustrated as a flat sheet metal blank 60a prior to its forming, the terminal 60 is seen to include a first housing end portion 61, an intermediate collapsible portion 62 and a second housing end portion 63.
  • the intermediate collapsible portion 62 comprises a pair of collapsible contacting sections 65 each adapted with a pair of generally V-shaped reinforcing ribs 66 and a pair of edge notches 67.
  • the ribs 65 and notches 67 together define an axis 68 about which the sections 65 may be bent.
  • a polygonal aperture 69 is formed in each section 65 shaped assymetrically about the axis of bending 68.
  • the contacting sections 65 are fomed such that they are offset axially one to another yielding the terminal configuration illustrated in Figs. 7b and 7c after the terminal blank 60a is formed into a box-like housing.
  • the operation of the modified terminal 60 may be seen from Figs. 7b and 7c wherein the terminal 50 is shown as having been inserted into a housing 70 and collapsed into contact with a relatively small gauge wire 71 in Fig. 7b and a relatively large gauge wire 72 in Fig. 7c.
  • the relative axial displacement of the contacting sections 65 along the length of each terminal 60 permits the sections 65 to assume a degree of collapsing compatable with the diameter of the respective terminated wire, without ultimate abument between pairs of contacters at the axes of bending 68 as would occur in termination of a small diameter wire, were the contacting sections 65 in alignment with one another along the length of the terminal 60.
  • the housing 10 may be adapted with suitable re-entrant strain relief tabs 73.
  • the upper tab 73 as viewed in Figs. 75 and 7c, is slightly longer than the lower tab 73 such that both tabs are acted upon simultaneously by respective contacting sections 65 despite the relative displacement of the sections 65 with respect to the longitudinal axis of the terminal 60.
  • a collapsible terminal designated generally by the reference numeral 80, is adapted for terminating a shielded cable 81.
  • the cable 81 generally includes a coaxially arranged conductor core 82 coated with insulation 83, a metalic shielding layer 84 and a surface coating of insulation 85.
  • the terminal 80 is formed into a U-shaped configuration from a sheet metal blank having a first end portion 86, an intermediate collapsible portion 87 and a second end portion 88. Notches 89 are formed in the terminal 80 at the junctures of the intermediate portion 87 with end portions 86 and 88 to weaken the terminal 80 for bending at such junctures.
  • Intermediate portion 87 comprises a pair of opposed contacting sections 90 each having strengthening ribs 91 suitably positioned on opposite sides of intermediate edge notches 92 which together define a line of weakness 93 transversely through the center of each section 90.
  • the sections 90 are further adapted with apertures 94 each configured with teeth 95 extending centrally therewithin.
  • Straps 96 are provided at end portions 86 and 88 connecting the contacting sections 90 in opposed spaced-apart relationship. Gussets 97 are pressed into end portions 86 and 88 lending rigidity to the terminal 80 in its fully formed configuration.
  • a grounding tang 100 extends outwardly from opposite end portion 88.
  • terminal 80 is shown as fully inserted into a dielectric housing 101 for connection to a printed circuit board 102 or the like.
  • the housing is formed with an open end 103 providing access to a cavity 104 which slidingly receives the terminal 80.
  • a bottom wall 105 Opposite the open end 103 is a bottom wall 105 having an aperture 106 for passage of a round pin terminal 107.
  • the pin terminal 107 is formed with a shoulder portion 108 which is received in a complementary recess 109 formed in the bottom wall 105 of the housing 101.
  • a spike 110 formed integrally with the pin 107 extends above the shoulder 108 and into the housing cavity 104 for electrical engagement with the conductor core 32 of the inserted cable 81.
  • Tabs 111 integrally formed with bottom wall 105 extend upwardly into the cavity 104 to provide fulcrums for collapse of each contacting section 90 in a direction suitable to permit the teeth 95 to pierce the insulative coating 85 of the cable 81 and establish electrical contact with the shield 84.
  • the actuation force required to collapse a terminal constructed in accordance with the invention can be transmitted to the terminal by a variety of methods.
  • the terminal 10 of Figs. 3 and 4 may be actuated, as described hereinabove, by bracing the housing 31 against a fixed surface.
  • the terminal end portion 13 may be braced against an appropriately designed fixture (not shown) while the housing 31 is moved in a direction axially of the terminals 10.
  • an actuation force applied to end portion 8G of terminal 80 coincident with the direction of wire insertion, in contrast to the opposite arrangement of Figs. 3 and 4, is equally possible permitting termination in a single step, for example, by use of a suitable fixture having the capability of inserting the wire and collapsing the terminal in one motion.
  • a wide degree of design variability with respect to housing configurations and uses of the collapsible terminal of the invention are possible, so long as a resultant force is applied axially to the terminal and the terminal is free to collapse in response to such force.
  • the collapsible terminal of the instant invention due to its axial actuation capability, is particularly suitable for use in high density electrical connectors wherein space limitations require that a multiplicity of circuit terminations are arranged in a closely spaced array.
  • axial terminal actuation in accordance with the principles of the invention, and as best illustrated in Fig. 2 permits a connector housing to be completely environmentally sealed by convenient and inexpensive means.

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  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP19830303933 1982-07-23 1983-07-06 Anschlusselement mit Isolationsverschiebung für einen elektrischen Verbinder und Umgebungsabdichtungsmittel dafür Expired EP0102156B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8221411 1982-07-23
GB8221411 1982-07-23
GB8222891 1982-08-09
GB8222891 1982-08-09

Publications (3)

Publication Number Publication Date
EP0102156A2 true EP0102156A2 (de) 1984-03-07
EP0102156A3 EP0102156A3 (en) 1985-12-27
EP0102156B1 EP0102156B1 (de) 1988-04-06

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ID=26283422

Family Applications (1)

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EP19830303933 Expired EP0102156B1 (de) 1982-07-23 1983-07-06 Anschlusselement mit Isolationsverschiebung für einen elektrischen Verbinder und Umgebungsabdichtungsmittel dafür

Country Status (2)

Country Link
EP (1) EP0102156B1 (de)
DE (1) DE3376242D1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393879A2 (de) * 1989-04-20 1990-10-24 Molex Incorporated Elektrisches Steckverbinder-System und hierfür vorgesehene Endkontakte, die die Isolation durchdringen
EP0474113A1 (de) * 1990-09-01 1992-03-11 Molex Incorporated Verbindungsvorrichtung für Mehrleiterkabel
EP0534276A2 (de) * 1991-09-23 1993-03-31 Molex Incorporated Schneidklemmanschluss für einen elektrischen Verbinder
US5277616A (en) * 1992-02-07 1994-01-11 Harting Elektronik Gmbh Electrical connector
EP0731531A2 (de) * 1995-03-07 1996-09-11 The Whitaker Corporation Elektrischer Verbinder mit einer Gel-Dichtung und einer Anordung für Kontaktieren eines Leiters nach dessen Einführung
FR2747772A1 (fr) * 1996-04-22 1997-10-24 Livbag Snc Initiateur a prise bifilaire autobloquante pour generateurs pyrotechniques de gaz
WO2003020368A3 (en) * 2001-09-05 2004-01-08 Medtronic Inc Medical lead connector
CN109088202A (zh) * 2018-07-23 2018-12-25 昆山杰顺通精密组件有限公司 防溃端子、卡座及移动设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035947A (en) * 1931-11-30 1936-03-31 Gen Motors Corp Connecter
GB1109914A (en) * 1965-09-28 1968-04-18 Eric Lionel Hutchings Improvements in or relating to coaxial cable connectors
US4090764A (en) * 1973-12-19 1978-05-23 The Deutsch Company Electronic Components Division Modular electrical connector
EP0000624A1 (de) * 1977-07-20 1979-02-07 AMP INCORPORATED (a New Jersey corporation) Elektrischer Verbinder mit einem geschlitzten Anschlussteil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035947A (en) * 1931-11-30 1936-03-31 Gen Motors Corp Connecter
GB1109914A (en) * 1965-09-28 1968-04-18 Eric Lionel Hutchings Improvements in or relating to coaxial cable connectors
US4090764A (en) * 1973-12-19 1978-05-23 The Deutsch Company Electronic Components Division Modular electrical connector
EP0000624A1 (de) * 1977-07-20 1979-02-07 AMP INCORPORATED (a New Jersey corporation) Elektrischer Verbinder mit einem geschlitzten Anschlussteil

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393879A2 (de) * 1989-04-20 1990-10-24 Molex Incorporated Elektrisches Steckverbinder-System und hierfür vorgesehene Endkontakte, die die Isolation durchdringen
EP0393879A3 (de) * 1989-04-20 1992-03-04 Molex Incorporated Elektrisches Steckverbinder-System und hierfür vorgesehene Endkontakte, die die Isolation durchdringen
EP0474113A1 (de) * 1990-09-01 1992-03-11 Molex Incorporated Verbindungsvorrichtung für Mehrleiterkabel
EP0534276A2 (de) * 1991-09-23 1993-03-31 Molex Incorporated Schneidklemmanschluss für einen elektrischen Verbinder
EP0534276A3 (en) * 1991-09-23 1993-06-30 Molex Incorporated Insulation displacement terminal for an electrical connector
US5277616A (en) * 1992-02-07 1994-01-11 Harting Elektronik Gmbh Electrical connector
EP0731531A2 (de) * 1995-03-07 1996-09-11 The Whitaker Corporation Elektrischer Verbinder mit einer Gel-Dichtung und einer Anordung für Kontaktieren eines Leiters nach dessen Einführung
EP0731531A3 (de) * 1995-03-07 1997-01-29 Whitaker Corp Elektrischer Verbinder mit einer Gel-Dichtung und einer Anordung für Kontaktieren eines Leiters nach dessen Einführung
FR2747772A1 (fr) * 1996-04-22 1997-10-24 Livbag Snc Initiateur a prise bifilaire autobloquante pour generateurs pyrotechniques de gaz
EP0803700A1 (de) * 1996-04-22 1997-10-29 S.N.C. Livbag Zünder mit selbstklemmendem Zweileiter-Anschluss für pyrotechnische Gasgeneratoren
US6146598A (en) * 1996-04-22 2000-11-14 Snc Livbag Initiator unit having a self locking two wire connector for pyrotecnic generators
WO2003020368A3 (en) * 2001-09-05 2004-01-08 Medtronic Inc Medical lead connector
CN109088202A (zh) * 2018-07-23 2018-12-25 昆山杰顺通精密组件有限公司 防溃端子、卡座及移动设备
CN109088202B (zh) * 2018-07-23 2023-08-15 昆山杰顺通精密组件有限公司 防溃端子、卡座及移动设备

Also Published As

Publication number Publication date
EP0102156B1 (de) 1988-04-06
DE3376242D1 (en) 1988-05-11
EP0102156A3 (en) 1985-12-27

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