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EP0324151A1 - Electrical terminal clamp - Google Patents

Electrical terminal clamp Download PDF

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Publication number
EP0324151A1
EP0324151A1 EP88121546A EP88121546A EP0324151A1 EP 0324151 A1 EP0324151 A1 EP 0324151A1 EP 88121546 A EP88121546 A EP 88121546A EP 88121546 A EP88121546 A EP 88121546A EP 0324151 A1 EP0324151 A1 EP 0324151A1
Authority
EP
European Patent Office
Prior art keywords
passage
anchoring
slots
base plate
spring clamping
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
EP88121546A
Other languages
German (de)
French (fr)
Other versions
EP0324151B1 (en
Inventor
Siegfried Schulte
Manfred Böing
Friedr.Wilh. Otlinghaus
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.)
Schulte Elektrotechnik GmbH and Co KG
Original Assignee
Schulte Elektrotechnik GmbH and Co KG
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 Schulte Elektrotechnik GmbH and Co KG filed Critical Schulte Elektrotechnik GmbH and Co KG
Priority to AT88121546T priority Critical patent/ATE88839T1/en
Publication of EP0324151A1 publication Critical patent/EP0324151A1/en
Application granted granted Critical
Publication of EP0324151B1 publication Critical patent/EP0324151B1/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
    • 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
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the invention relates to an electrical connection terminal for a screw connection with a passage for a tensioning element base plate, on which angled anchoring legs, which are bent at right angles and parallel to one another, for receiving a spring clamp washer, and with contact webs standing upright on opposite sides of the base plate.
  • An electrical terminal of this type is known from DE-U-1 947 175. This terminal is designed for mounting on rails. This terminal is not suitable for mounting on connecting pins.
  • the object of the invention is to provide a screw terminal which can be easily attached to pins in housings, in particular connection housings.
  • each anchoring leg ends in two tongues, each having mutually opposed slots, that the spring washer is inserted into these slots and that the front side wall of each slot is pressed against the spring washer.
  • the invention differs from the prior art in that the anchoring legs holding the spring clamping disk enclose sufficient space for receiving the pin and for accommodating the shaft of the tensioning element for the conductor wire.
  • the screw terminal consists of a narrow sheet metal blank of uniform width, so that the manufacturing and material costs can be kept low.
  • the spring washer is in the Slits are captively clamped and held when they are pressed on, so that perfect assembly is guaranteed.
  • the material requirement is kept particularly small in that the passage is designed as a threaded passage, that the anchoring legs each have a free cut in connection with the base plate and that the cut-out tab is bent as a contact web.
  • the space required for the connecting terminal can be kept small by the fact that the anchoring leg itself serves as a contact leg and that a screw reaching through the passage carries a nut. The conductor wires are then clamped to the anchoring legs.
  • the flat sheet metal blank has a drawn, sleeve-shaped passage 2 with a thread 3 in a base plate 1.
  • Anchoring legs 4 adjoin the base plate 1, each of which has a window-like free cut 5, the cut and bent tab serving as a contact web 6 of the finished connecting terminal.
  • the ends of the anchoring legs 4 run into mutually opposing tongues 7, each of which have mutually aligned, opposing slots 8.
  • the front side wall 9 of each slot is comparatively narrow.
  • the width of the sheet metal blank is essentially constant everywhere and corresponds to the width of the anchoring legs.
  • the anchoring legs 4 are bent at right angles to the base plate 1 at the fold lines 10.
  • the contact webs are also bent at right angles on the fold lines 11. however in the opposite direction to the anchoring legs 4, so that the anchoring legs 4 and the contact webs 6 are aligned essentially parallel to one another at the connecting terminal, as can be seen in particular from FIG. 3.
  • the slots 8 receive a spring washer 12 which is cut out of a spring band and shaped.
  • This spring washer 12 can be automatically inserted into the slots 8 in the manufacture of the terminal.
  • the side walls 9 are pressed in the direction of arrow 13, so that the spring washer 12 is firmly clamped in the slots 8.
  • the narrow side walls can be easily deformed.
  • the terminal is pressed according to Fig. 3 with the spring washer 12 on a pin 15 or another approach of a housing or a support plate 16 and fastened in this way.
  • the spring washer 12 acts in a known manner.
  • the anchoring legs 4 have a sufficient length so that on the one hand the pin 15 and on the other hand the foot of a connecting screw 14 to be screwed into the thread 3 can be accommodated without any obstructions.
  • the connecting screw 14 is screwed into the thread 3 and clamps conductor wires 17 in the usual way. The position of the conductor wires is fixed by the contact webs 6 so that the conductor wires cannot step under the head of the connecting screw 14.
  • Fig. 5 shows a modified embodiment.
  • the shaft of the connecting screw 14 extends through the thread-free passage 2.
  • On the thread of the connecting screw 14 sits a square nut 21, which is guided between the anchoring legs 4 'without rotation.
  • the conductor wires 17 are clamped in a known manner.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

An electrical terminal clamp for a screw terminal with a baseplate, having a passage for a clamping element, on which there are seated anchoring limbs, which are bent at right angles and lie opposite parallel to one another, for holding a spring clamping disc, and with supporting webs projecting at right angles on opposite sides of the baseplate. The technical problem is the provision of a screw terminal clamp which can easily be attached to pegs in housings, especially terminal housings. Each anchoring limb (4) terminates in two tongues (7), each having mutually opposite slots (8). The spring clamping disc (12) is inserted in these slots. The end-face side wall (9) of each slot (8) is pressed onto the spring clamping disc (12). <IMAGE>

Description

Die Erfindung betrifft eine elektrische Anschlußklemme für einen Schraubanschluß mit einer einen Durchgang für ein Spannelement aufwei­senden Grundplatte, an der rechtwinklig abgebogene und einander paral­lel gegenüberstehende Verankerungsschenkel zur Aufnahme einer Feder­klemmscheibe sitzen, und mit an gegenüberliegenden Seiten der Grund­platte senkrecht aufstehenden Anlagestegen.The invention relates to an electrical connection terminal for a screw connection with a passage for a tensioning element base plate, on which angled anchoring legs, which are bent at right angles and parallel to one another, for receiving a spring clamp washer, and with contact webs standing upright on opposite sides of the base plate.

Eine elektrische Anschlußklemme dieser Gattung ist aus der DE-U-1 947 175 bekannt. Diese Anschlußklemme ist für eine Montage auf Schienen ausgebildet. Für eine Montage auf Anschlußzapfen ist diese Anschlußklemme nicht geeignet.An electrical terminal of this type is known from DE-U-1 947 175. This terminal is designed for mounting on rails. This terminal is not suitable for mounting on connecting pins.

Aufgabe der Erfindung ist die Bereitstellung einer Schrauban­schlußklemme, die in einfacher Weise an Zapfen in Gehäusen, insbeson­dere Anschlußgehäusen befestigt werden kann.The object of the invention is to provide a screw terminal which can be easily attached to pins in housings, in particular connection housings.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß jeder Verankerungsschenkel in zwei Zungen ausläuft, die jeweils einander ge­genüberstehende Schlitze aufweisen, daß die Federklemmscheibe in die­se Schlitze eingelegt ist und daß die stirnseitige Seitenwand jedes Schlitzes an die Federklemmscheibe angedrückt ist.This object is achieved according to the invention in that each anchoring leg ends in two tongues, each having mutually opposed slots, that the spring washer is inserted into these slots and that the front side wall of each slot is pressed against the spring washer.

Die Erfindung unterscheidet sich insofern vom Stand der Technik, als die die Federklemmscheibe haltenden Verankerungsschenkel einen ausreichenden Raum für die Aufnahme des Zapfens und zur Unterbringung des Schaftes des Spannelementes für den Leiterdraht umschließen. Die Schraubanschlußklemme besteht aus einem schmalen Blechzuschnitt gleichmäßiger Breite, so daß die Fertigungskosten und Werkstoffkosten klein gehalten werden können. Die Federklemmscheibe wird in den Schlitzen unverlierbar festgeklemmt und beim Aufdrücken festgehalten, so daß eine einwandfreie Montage gewährleistet ist.The invention differs from the prior art in that the anchoring legs holding the spring clamping disk enclose sufficient space for receiving the pin and for accommodating the shaft of the tensioning element for the conductor wire. The screw terminal consists of a narrow sheet metal blank of uniform width, so that the manufacturing and material costs can be kept low. The spring washer is in the Slits are captively clamped and held when they are pressed on, so that perfect assembly is guaranteed.

Der Werkstoffbedarf wird dadurch besomders klein gehalten, daß der Durchgang als Gewindedurchgang ausgebildet ist, daß die Veranke­rungsschenkel jeweils im Anschluß an die Grundplatte einen Frei­schnitt aufweisen und daß der freigeschnittene Lappen als Anlagesteg abgebogen ist.The material requirement is kept particularly small in that the passage is designed as a threaded passage, that the anchoring legs each have a free cut in connection with the base plate and that the cut-out tab is bent as a contact web.

Der Platzbedarf für die Anschlußklemme läßt sich dadurch klein halten, daß der Verankerungsschenkel selbst als Anlageschenkel dient und daß eine durch den Durchgang reichende Schraube eine Mutter trägt. Damit erfolgt die Klemmung der Leiterdrähte an den Veranke­rungsschenkeln.The space required for the connecting terminal can be kept small by the fact that the anchoring leg itself serves as a contact leg and that a screw reaching through the passage carries a nut. The conductor wires are then clamped to the anchoring legs.

Ausführungsformen der Erfindung werden im Folgenden unter Bezug­nahme auf die anliegende Zeichnung erläutert, in der darstellen:

  • Fig. 1 den ebenen Blechzuschnitt für die Anschlußklemme,
  • Fig. 2 eine Ansicht der Anschlußklemme,
  • Fig. 3 einen Schnitt nach der Linie III-III in Fig. 2,
  • Fig. 4 eine Seitenansicht zu Fig. 2 und
  • Fig. 5 einen Schnitt durch eine abgewandelte Ausführungsfomr.
Embodiments of the invention are explained below with reference to the accompanying drawing, in which:
  • 1 shows the flat sheet metal blank for the connecting terminal,
  • 2 is a view of the terminal,
  • 3 shows a section along the line III-III in FIG. 2,
  • Fig. 4 is a side view of Fig. 2 and
  • 5 shows a section through a modified embodiment.

Der ebene Blechzuschnitt weist in einer Grundplatte 1 einen gezo­genen, hülsenförmigen Durchgang 2 mit einem Gewinde 3 auf. An die Grundplatte 1 schließen sich Verankerungsschenkel 4 an, die jeweils einen fensterartigen Freischnitt 5 aufweisen, wobei der freigeschnit­tene und abgebogene Lappen als Anlagesteg 6 der fertigen Anschlußklem­me dient. Die Enden der Verankerungsschenkel 4 laufen in einander gegenüberstehende Zungen 7 aus, die jeweils aufeinander ausgerichte­te, einander gegenüberstehende Schlitze 8 aufweisen. Die stirnseitige Seitenwand 9 jedes Schlitzes ist vergleichsweise schmal.The flat sheet metal blank has a drawn, sleeve-shaped passage 2 with a thread 3 in a base plate 1. Anchoring legs 4 adjoin the base plate 1, each of which has a window-like free cut 5, the cut and bent tab serving as a contact web 6 of the finished connecting terminal. The ends of the anchoring legs 4 run into mutually opposing tongues 7, each of which have mutually aligned, opposing slots 8. The front side wall 9 of each slot is comparatively narrow.

Der Blechzuschnitt nach Fig. 1 wird in üblicher Weise aus einem Blechstreifen gestanzt. Die Breite des Blechzuschnittes ist überall im wesentlichen gleichbleibend und entspricht der Breite der Veranke­rungsschenkel.1 is punched out of a sheet metal strip in the usual way. The width of the sheet metal blank is essentially constant everywhere and corresponds to the width of the anchoring legs.

Zur fertigen Anschlußklemme werden die Verankerungsschenkel 4 gegenüber der Grundplatte 1 an den Faltlinien 10 rechtwinklig umgebo­gen. Die Anlagestege werden an den Faltlinien 11 ebenfalls rechtwink­lig umgebogen. jedoch in entgegengesetzter Richtung zu den Veranke­rungsschenkeln 4, so daß bei der Anschlußklemme die Verankerungsschen­kel 4 und die Anlagestege 6 im wesentlichen parallel zueinander ausge­richtet sind, wie man insbesondere aus Fig. 3 erkennt.For the finished terminal, the anchoring legs 4 are bent at right angles to the base plate 1 at the fold lines 10. The contact webs are also bent at right angles on the fold lines 11. however in the opposite direction to the anchoring legs 4, so that the anchoring legs 4 and the contact webs 6 are aligned essentially parallel to one another at the connecting terminal, as can be seen in particular from FIG. 3.

Die Schlitze 8 nehmen eine Federklemmscheibe 12 auf, die aus einem Federband ausgeschnitten und geformt wird. Diese Federklemm­scheibe 12 läßt sich bei der Herstellung der Anschlußklemme automa­tisch in die Schlitze 8 einführen. Zur Halterung der Federklemmschei­be werden die Seitenwände 9 in Pfeilrichtung 13 angedrückt, so daß die Federklemmscheibe 12 in den Schlitzen 8 fest eingeklemmt ist. Die schmalen Seitenwände lassen sich leicht verformen.The slots 8 receive a spring washer 12 which is cut out of a spring band and shaped. This spring washer 12 can be automatically inserted into the slots 8 in the manufacture of the terminal. To hold the spring washer, the side walls 9 are pressed in the direction of arrow 13, so that the spring washer 12 is firmly clamped in the slots 8. The narrow side walls can be easily deformed.

Die Anschlußklemme wird nach Fig. 3 mit der Federklemmscheibe 12 auf einen Zapfen 15 oder einen anderen Ansatz eines Gehäuses oder einer Tragplatte 16 aufgedrückt und so befestigt. Die Federklemmschei­be 12 wirkt in bekannter Weise. Die Verankerungsschenkel 4 haben eine ausreichende Länge, damit einerseits der Zapfen 15 und andererseits der Fuß einer in das Gewinde 3 einzuschraubenden Anschlußschraube 14 Platz finden, ohne daß Behinderungen auftreten. Die Anschlußschraube 14 wird in das Gewinde 3 eingeschraubt und klemmt in üblicher Weise Leiterdrähte 17 fest. Die Lage der Leiterdrähte wird durch die Anlage­stege 6 fixiert, damit die Leiterdrähte nicht unter dem Kopf der An­schlußschraube 14 herautreten können.The terminal is pressed according to Fig. 3 with the spring washer 12 on a pin 15 or another approach of a housing or a support plate 16 and fastened in this way. The spring washer 12 acts in a known manner. The anchoring legs 4 have a sufficient length so that on the one hand the pin 15 and on the other hand the foot of a connecting screw 14 to be screwed into the thread 3 can be accommodated without any obstructions. The connecting screw 14 is screwed into the thread 3 and clamps conductor wires 17 in the usual way. The position of the conductor wires is fixed by the contact webs 6 so that the conductor wires cannot step under the head of the connecting screw 14.

Fig. 5 zeigt eine abgewandelte Ausführungsform. Dort sind die Verankerungsschenkel 4′ gleichzeitig Anlagestege. Durch den gewinde­freien Durchgang 2 reicht der Schaft der Anschlußschraube 14 hin­durch. Auf dem Gewinde der Anschlußschraube 14 sitzt eine Vierkantmut­ter 21, die verdrehungsfrei zwischen den Verankerungsschenkeln 4′ ge­führt ist. Die Leiterdrähte 17 sind in bekannter Weise festgeklemmt.Fig. 5 shows a modified embodiment. There are the anchoring legs 4 'at the same time landing stages. The shaft of the connecting screw 14 extends through the thread-free passage 2. On the thread of the connecting screw 14 sits a square nut 21, which is guided between the anchoring legs 4 'without rotation. The conductor wires 17 are clamped in a known manner.

Claims (3)

1. Elektrische Anschlußklemme für einen Schraubanschluß mit einer einen Durchgang für ein Spannelement aufweisenden Grundplatte, an der rechtwinklig abgebogene und einander parallel gegenüberstehen­de Verankerungsschenkel zur Aufnahme einer Federklemmscheibe sitzen, und mit an gegenüberliegenden Seiten der Grundplatte senkrecht aufste­henden Anlagestegen, dadurch gekennzeichnet, daß jeder Verankerungs­schenkel (4) in zwei Zungen (7) ausläuft, die jeweils einander gegen­überstehende Schlitze (8) aufweisen, daß die Federklemmscheibe (12) in diese Schlitze eingelegt ist und daß die stirnseitige Seitenwand (9) jedes Schlitzes (8) an die Federklemmscheibe (12) angedrückt ist.1.Electrical connecting clamp for a screw connection with a base plate having a passage for a tensioning element, on which anchoring legs which are bent at right angles and parallel to one another for receiving a spring-loaded washer are seated, and with contact webs standing upright on opposite sides of the base plate, characterized in that each anchoring leg ( 4) runs out into two tongues (7), each having mutually opposing slots (8), that the spring clamping disk (12) is inserted into these slots and that the front side wall (9) of each slot (8) on the spring clamping disk (12) is pressed. 2. Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß der Durchgang als Gewindedurchgang ausgebildet ist, daß die Veranke­rungsschenkel (4) jeweils im Anschluß an die Grundplatte (1) einen Freischnitt (5) aufweisen und daß der freigeschnittene Lappen als Anlagesteg (6) abgebogen ist.2. Terminal according to claim 1, characterized in that the passage is designed as a threaded passage, that the anchoring legs (4) each have a cutout (5) following the base plate (1) and that the cut-out tab is bent as a contact web (6) is. 3. Anschlußklemme nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß der Verankerungsschenkel (4′) selbst als Anlageschenkel dient und daß eine durch den Durchgang (2) reichende Schraube eine Mutter (21) trägt.3. Terminal according to claim 1 or 2, characterized in that the anchoring leg (4 ') itself serves as a contact leg and that a through the passage (2) reaching screw carries a nut (21).
EP88121546A 1988-01-12 1988-12-23 Electrical terminal clamp Expired - Lifetime EP0324151B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121546T ATE88839T1 (en) 1988-01-12 1988-12-23 ELECTRICAL TERMINAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800615 1988-01-12
DE3800615A DE3800615C1 (en) 1988-01-12 1988-01-12

Publications (2)

Publication Number Publication Date
EP0324151A1 true EP0324151A1 (en) 1989-07-19
EP0324151B1 EP0324151B1 (en) 1993-04-28

Family

ID=6345114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121546A Expired - Lifetime EP0324151B1 (en) 1988-01-12 1988-12-23 Electrical terminal clamp

Country Status (3)

Country Link
EP (1) EP0324151B1 (en)
AT (1) ATE88839T1 (en)
DE (2) DE3800615C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730603A1 (en) * 1997-07-17 1999-02-11 Vossloh Schwabe Gmbh Terminal device
DE19801331C2 (en) * 1998-01-16 2003-09-25 Hayo Joerg Modular multiple star screw terminal system
DE19813753B4 (en) * 1998-03-27 2005-03-24 Abb Patent Gmbh contact terminal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947175A1 (en) * 1968-09-18 1970-04-02 Sno Trik Co Sealing and clamping device for a line, in particular a high pressure line
GB1211634A (en) * 1968-02-05 1970-11-11 Satchwell Controls Ltd Improvements in or relating to electrical terminal assemblies
US3694792A (en) * 1971-01-13 1972-09-26 Wall Able Mfg Corp Electrical terminal clamp
DE7622839U1 (en) * 1976-07-20 1976-11-04 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Terminal for connecting round and sector conductors to the end of flat bars in low-voltage systems
DE7914261U1 (en) * 1979-05-17 1980-11-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Terminal box for a frame-shaped connection terminal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1211634A (en) * 1968-02-05 1970-11-11 Satchwell Controls Ltd Improvements in or relating to electrical terminal assemblies
DE1947175A1 (en) * 1968-09-18 1970-04-02 Sno Trik Co Sealing and clamping device for a line, in particular a high pressure line
US3694792A (en) * 1971-01-13 1972-09-26 Wall Able Mfg Corp Electrical terminal clamp
DE7622839U1 (en) * 1976-07-20 1976-11-04 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Terminal for connecting round and sector conductors to the end of flat bars in low-voltage systems
DE7914261U1 (en) * 1979-05-17 1980-11-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Terminal box for a frame-shaped connection terminal

Also Published As

Publication number Publication date
EP0324151B1 (en) 1993-04-28
DE3880657D1 (en) 1993-06-03
ATE88839T1 (en) 1993-05-15
DE3800615C1 (en) 1989-03-23

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