EP0826441A1 - Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe - Google Patents

Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe Download PDF

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Publication number
EP0826441A1
EP0826441A1 EP97112228A EP97112228A EP0826441A1 EP 0826441 A1 EP0826441 A1 EP 0826441A1 EP 97112228 A EP97112228 A EP 97112228A EP 97112228 A EP97112228 A EP 97112228A EP 0826441 A1 EP0826441 A1 EP 0826441A1
Authority
EP
European Patent Office
Prior art keywords
press jaw
jaw
press
halves
tab
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
EP97112228A
Other languages
German (de)
French (fr)
Other versions
EP0826441B1 (en
Inventor
Walter Sen. Viegener
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.)
Viega GmbH and Co KG
Original Assignee
Franz Viegener II 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 Franz Viegener II GmbH and Co KG filed Critical Franz Viegener II GmbH and Co KG
Publication of EP0826441A1 publication Critical patent/EP0826441A1/en
Application granted granted Critical
Publication of EP0826441B1 publication Critical patent/EP0826441B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings

Definitions

  • the invention relates to a press jaw for a press tool for an unsolvable Cold connection between a fitting and a metal pipe, consisting of two, forming a press jaw halves that are rotatable in transverse to Longitudinal axis of the press jaw extending bridge parts are stored and in Press jaws in the press jaw halves each have a half-ring-shaped insert is set.
  • Press jaws of this type are known, in which the half-ring-shaped insert pieces exclusively by a ball catch in the respective press jaw half be locked. This definition of the half-ring-shaped inserts gives no one hundred percent certainty that the Do not move the inserts laterally.
  • the invention has for its object to hold the inserts during to improve the operation of the pressing tool with simple means without this affects the easy interchangeability of these inserts.
  • each bridge part has at least one tab, the with the press jaw closed or partially open in the area of the inserts extends and forms a side bracket for the inserts and at fully open press jaw releases the inserts for replacement.
  • the tabs are in the immediate vicinity of the outer boundary surfaces of the press jaw halves, so that they are closed or partially open press jaw any lateral displacement of the inserts prevent.
  • the press jaw 1 has two press jaw halves 2 and 3, which are about axes 4 and 5 are rotatably mounted in bridge parts 6 and 7, the bridge parts being transverse to Extend the longitudinal axis 8 of the press jaw.
  • These bridge parts point to the Not shown press tool facing side equipped with a bore 9
  • the press jaw halves 2 and 3 form a press jaw 11 which is of semi-annular shape Insert pieces 12 is limited, which are equipped with press edges.
  • the semi-ring shaped Insert pieces 12 are in the press jaw halves 2 and 3, respectively a ball catch 13 locked so that the replacement of these inserts in can be done easily. You only need to push it out of the side of the press jaw to become.
  • each bridge part 6 and 7 with a tab 14th equipped which with closed or partially open press jaw up to extends the area of the insert pieces 12 and a lateral holder for this Forms inserts.
  • the tabs 14 extend for this purpose in the immediate vicinity of the outer Boundary surfaces of the press jaw halves.
  • the tab 14 is advantageously formed in one piece with the respective bridge part 6 or 7. It would also be conceivable to have two webs or bolts that serve as the lateral holding function take over.
  • the flap 14 shown in FIG. 1 and in FIG. 2 is symmetrical about the fold Arranged longitudinal axis 8 and has at the end facing the press jaw 11 an arcuate limited recess 15.
  • the inserts can 12 removed without difficulty from the press jaw 11 laterally to replace them with other inserts.
  • the axes of rotation 4 and 5 are formed by hollow pins 16, which have an internal thread are provided and in the fixing of the bridge parts 6 and 7 countersunk screws 17 are screwed in, the head of which is located on washers 18 supports.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Clamps And Clips (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Table Equipment (AREA)
  • Stackable Containers (AREA)
  • Drilling Tools (AREA)

Abstract

The jaw is for a press-tool forming a permanent cold joint between a fitting and a metal pipe, and comprises halves pivoting on bridge-pieces (6,7) at right angles to the lengthwise axis, interchangeable semicircular inserts (12) being secured in them. On each bridge-piece are one or more lugs (14) protruding into the insert areas and forming lateral holders for them. These free the inserts to allow insert interchange when the jaw is fully open. These lugs can be immediately adjacent to the outer surfaces of the jaw halves (2,3). The lugs can be symmetrical in relation to the lengthwise axis (8) of the jaw, while having a curved recess at the end towards the jaw mouth (11).

Description

Die Erfindung bezieht sich auf eine Preßbacke für ein Preßwerkzeug für eine unlösbare Kaltverbindung zwischen einem Fitting und einem Metallrohr, bestehend aus zwei, ein Preßmaul bildenden Preßbackenhälften, die drehbar in quer zur Längsachse der Preßbacke sich erstreckenden Brückenteilen gelagert sind und im Preßmaul in den Preßbackenhälften je ein halbringförmiges Einsatzstück auswechselbar festgelegt ist.The invention relates to a press jaw for a press tool for an unsolvable Cold connection between a fitting and a metal pipe, consisting of two, forming a press jaw halves that are rotatable in transverse to Longitudinal axis of the press jaw extending bridge parts are stored and in Press jaws in the press jaw halves each have a half-ring-shaped insert is set.

Es sind Preßbacken dieser Art bekannt, bei denen die halbringförmigen Einsatzstücke ausschließlich durch einen Kugelschnäpper in der jeweiligen Preßbackenhälfte arretiert werden. Diese Festlegung der halbringförmigen Einsatzstücke gibt keine hundertprozentige Sicherheit dafür, daß sich während des Preßbetriebes die Einsatzstücke nicht seitlich verschieben.Press jaws of this type are known, in which the half-ring-shaped insert pieces exclusively by a ball catch in the respective press jaw half be locked. This definition of the half-ring-shaped inserts gives no one hundred percent certainty that the Do not move the inserts laterally.

Der Erfindung liegt die Aufgabe zugrunde, die Halterung der Einsatzstücke während des Betriebes des Preßwerkzeuges mit einfachen Mitteln zu verbessern, ohne daß dadurch die leichte Auswechselbarkeit dieser Einsatzstücke beeinträchtigt wird. The invention has for its object to hold the inserts during to improve the operation of the pressing tool with simple means without this affects the easy interchangeability of these inserts.

Erfindungsgemäß wird bei einer Preßbacke der eingangs genannten Art diese Aufgabe dadurch gelöst, daß jedes Brückenteil mindestens eine Lasche aufweist, die sich bei geschlossener oder teilweise geöffneter Preßbacke in den Bereich der Einsatzstücke erstreckt und eine seitliche Halterung für die Einsatzstücke bildet und bei vollständig geöffneter Preßbacke die Einsatzstücke zum Auswechseln freigibt.According to the invention, this object is achieved with a press jaw of the type mentioned solved in that each bridge part has at least one tab, the with the press jaw closed or partially open in the area of the inserts extends and forms a side bracket for the inserts and at fully open press jaw releases the inserts for replacement.

Bei einer vorteilhatten Ausführungsform liegen die Laschen in unmittelbarer Nähe der äußeren Begrenzungsflächen der Preßbackenhälften, so daß sie bei geschlossener oder teilweise geöffneter Preßbacke jegliches seitliches Verschieben der Einsatzstücke unterbinden.In an advantageous embodiment, the tabs are in the immediate vicinity of the outer boundary surfaces of the press jaw halves, so that they are closed or partially open press jaw any lateral displacement of the inserts prevent.

Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention emerge from the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden beschrieben.An embodiment of the invention is shown in the drawings and is in described below.

Es zeigen:

Figur 1
eine Preßbacke im Grundriß,
Figur 2
einen Schnitt nach der Linie II-II in Fig. 1 und
Figur 3
eine Teilansicht der Preßbacke nach Fig. 1, jedoch mit einer Preßbackenhälfte in geöffneter Betriebslage.
Show it:
Figure 1
a press jaw in the floor plan,
Figure 2
a section along the line II-II in Fig. 1 and
Figure 3
a partial view of the press jaw of FIG. 1, but with a press jaw half in the open operating position.

Die Preßbacke 1 weist zwei Preßbackenhälften 2 und 3 auf, die um Achsen 4 und 5 in Brückenteilen 6 und 7 drehbar gelagert sind, wobei sich die Brückenteile quer zur Längsachse 8 der Preßbacke erstrecken. Diese Brückenteile weisen an der dem nicht dargestellten Preßwerkzeug zugewandten Seite mit einer Bohrung 9 ausgerüstete Kopplungsstücke 10 auf, die mit dem Werkzeug durch einen Haltebolzen verbunden werden, der in die Bohrungen 9 eingesteckt wird.The press jaw 1 has two press jaw halves 2 and 3, which are about axes 4 and 5 are rotatably mounted in bridge parts 6 and 7, the bridge parts being transverse to Extend the longitudinal axis 8 of the press jaw. These bridge parts point to the Not shown press tool facing side equipped with a bore 9 Coupling pieces 10, which are connected to the tool by a retaining bolt be inserted into the holes 9.

Die Preßbackenhälften 2 und 3 bilden ein Preßmaul 11, das von halbringförmigen Einsatzstücken 12 begrenzt wird, die mit Preßkanten ausgerüstet sind. Die halbringförmigen Einsatzstücke 12 werden in den Preßbackenhälften 2 und 3 jeweils durch einen Kugelschnäpper 13 arretiert, so daß die Auswechslung dieser Einsatzstücke in einfacher Weise erfolgen kann. Sie brauchen nur seitlich aus dem Preßmaul herausgedrückt zu werden.The press jaw halves 2 and 3 form a press jaw 11 which is of semi-annular shape Insert pieces 12 is limited, which are equipped with press edges. The semi-ring shaped Insert pieces 12 are in the press jaw halves 2 and 3, respectively a ball catch 13 locked so that the replacement of these inserts in can be done easily. You only need to push it out of the side of the press jaw to become.

Um aber während des Betriebes eine einwandfreie Halterung der Einsatzstücke 12 im Preßmaul zu gewährleisten, ist jedes Brückenteil 6 und 7 mit einer Lasche 14 ausgerüstet, die sich bei geschlossener oder teilweise geöffneter Preßbacke bis in den Bereich der Einsatzstücke 12 erstreckt und eine seitliche Halterung für diese Einsatzstücke bildet.However, in order to ensure that the insert pieces 12 are held properly during operation To ensure in the press jaw, each bridge part 6 and 7 with a tab 14th equipped, which with closed or partially open press jaw up to extends the area of the insert pieces 12 and a lateral holder for this Forms inserts.

Die Laschen 14 erstrecken sich zu diesem Zweck in unmittelbarer Nähe der äußeren Begrenzungsflächen der Preßbackenhälften.The tabs 14 extend for this purpose in the immediate vicinity of the outer Boundary surfaces of the press jaw halves.

Vorteilhaft ist die Lasche 14 mit dem jeweiligen Brückenteil 6 oder 7 einstückig ausgebildet. Ebenso denkbar wären zwei Stege oder Bolzen, die die seitliche Haltefunktion übernehmen.The tab 14 is advantageously formed in one piece with the respective bridge part 6 or 7. It would also be conceivable to have two webs or bolts that serve as the lateral holding function take over.

Die in der Fig. 1 und in der Fig. 2 dargestellte Lasche 14 ist klappsymmetrisch zur Längsachse 8 angeordnet und weist an dem dem Preßmaul 11 zugewandten Ende eine bogenförmig begrenzte Ausnehmung 15 auf.The flap 14 shown in FIG. 1 and in FIG. 2 is symmetrical about the fold Arranged longitudinal axis 8 and has at the end facing the press jaw 11 an arcuate limited recess 15.

Während die Fig. 1 die geschlossene Stellung der Preßbacke 1 darstellt, ist in der Fig. 3 die Preßbacke vollständig geöffnet.1 shows the closed position of the press jaw 1 is in the Fig. 3 the press jaw fully opened.

In der Betriebslage der Fig. 1 und auch bei teilweise geöffneter Preßbacke wird durch die sich in den Bereich des Preßmauls erstreckenden Laschen 14 eine Sicherung der Einsatzstücke 12 gegen ein seitliches Verschieben erreicht.In the operating position of FIG. 1 and also with the press jaw partially open, is by the straps 14 extending into the area of the press jaw secure the Insert pieces 12 reached against lateral displacement.

In der vollständig geöffneten Preßbackenstellung nach der Fig. 3 können die Einsatzstücke 12 ohne Schwierigkeiten aus dem Preßmaul 11 seitlich herausgenommen werden, um sie gegen andere Einsatzstücke auszuwechseln.In the fully open press jaw position according to FIG. 3, the inserts can 12 removed without difficulty from the press jaw 11 laterally to replace them with other inserts.

Aus der Fig. 2 ergibt sich, daß die Preßbacke mit einer Feder 15 ausgerüstet ist, die gegenüber den Drehachsen 4 und 5 zu der dem Preßmaul 11 abgewandten Seite versetzt ist, so daß diese Feder bestrebt ist, die Preßbackenhälften 2 und 3 in einer Verschlußstellung zu halten.From Fig. 2 it follows that the press jaw is equipped with a spring 15, the opposite the axes of rotation 4 and 5 to the side facing away from the press jaw 11 is offset, so that this spring strives to press jaw halves 2 and 3 in one To keep the closed position.

Die Drehachsen 4 und 5 werden durch Hohlzapfen 16 gebildet, die mit einem Innengewinde versehen sind und in die zur Festlegung der Brückenteile 6 und 7 Senkkopfschrauben 17 eingeschraubt werden, deren Kopf sich an Unterlegscheiben 18 abstützt.The axes of rotation 4 and 5 are formed by hollow pins 16, which have an internal thread are provided and in the fixing of the bridge parts 6 and 7 countersunk screws 17 are screwed in, the head of which is located on washers 18 supports.

Claims (5)

Preßbacke für ein Preßwerkzeug für eine unlösbare Kaltverbindung zwischen einem Fitting und einem Metallrohr, bestehend aus zwei, ein Preßmaul bildenden Preßbackenhälften, die drehbar an quer zur Längsachse der Preßbacke sich erstreckenden Brückenteilen gelagert sind und im Preßmaul in den Preßbackenhälften je ein halbringförmiges Einsatzstück auswechselbar festgelegt ist, dadurch gekennzeichnet, daß jedes Brückenteil (6,7) mindestens eine Lasche (14) aufweist, die sich bei geschlossener oder teilweise geöffneter Preßbacke in den Bereich der Einsatzstücke (12) erstreckt und eine seitliche Halterung für die Einsatzstücke (12) bildet und bei vollständig geöffneter Preßbacke die Einsatzstücke zum Auswechseln freigibt.Press jaw for a press tool for an inseparable cold connection between a fitting and a metal tube, consisting of two press jaw halves forming a press jaw, which are rotatably mounted on bridge parts extending transversely to the longitudinal axis of the press jaw and in the press jaw in the press jaw halves each a half-ring-shaped insert is interchangeably fixed , characterized in that each bridge part (6, 7) has at least one tab (14) which, when the press jaw is closed or partially open, extends into the region of the insert pieces (12) and forms a lateral holder for the insert pieces (12) and at fully open press jaw releases the inserts for replacement. Preßbacke nach Anspruch 1, dadurch gekennzeichnet, daß die Laschen (14) in unmittelbarer Nähe der äußeren Bregrenzungsfläche der Preßbackenhälften (2,3) vorgesehen sind.Press jaw according to claim 1, characterized in that the tabs (14) in the immediate vicinity of the outer face boundary of the press jaw halves (2,3) are provided. Preßbacke nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Lasche (14) eines Brückenteils (2,3) klappsymmetrisch zur Längsachse (8) der Preßbacke (1) angeordnet ist und an dem dem Preßmaul (11) zugewandten Ende eine bogenförmig begrenzte Ausnehmung (15a) aufweist.Press jaw according to claim 1 or 2, characterized in that the tab (14) of a bridge part (2, 3) folding symmetrically to the longitudinal axis (8) of the press jaw (1) is arranged and at the end facing the press jaw (11) has an arc-shaped recess (15a). Preßbacke nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lasche (14) und das Brückenteil (6,7) einstückig gefertigt sind. Press jaw according to one of the preceding claims, characterized in that that the tab (14) and the bridge part (6,7) made in one piece are. Preßbacke nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Lasche (14) mit dem Brückenteil durch Stege oder Bolzen verbunden ist.Press jaw according to one of claims 1 to 3, characterized in that the tab (14) is connected to the bridge part by means of webs or bolts.
EP97112228A 1996-08-26 1997-07-17 Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe Expired - Lifetime EP0826441B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29614804U DE29614804U1 (en) 1996-08-26 1996-08-26 Press jaw for a press tool for a permanent cold connection between a fitting and a metal pipe
DE29614804U 1996-08-26

Publications (2)

Publication Number Publication Date
EP0826441A1 true EP0826441A1 (en) 1998-03-04
EP0826441B1 EP0826441B1 (en) 2001-04-04

Family

ID=8028352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112228A Expired - Lifetime EP0826441B1 (en) 1996-08-26 1997-07-17 Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe

Country Status (5)

Country Link
EP (1) EP0826441B1 (en)
AT (1) ATE200233T1 (en)
DE (2) DE29614804U1 (en)
DK (1) DK0826441T3 (en)
ES (1) ES2155641T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804354A1 (en) * 2000-01-31 2001-08-03 Dubuis Et Cie M TIGHTENING TOOL AND PARTICULARLY CRIMPING
DE102012100357A1 (en) 2012-01-17 2013-07-18 Viega Gmbh & Co. Kg Tool jaw, particularly pressing jaw, for compressing workpieces, has tool jaw half detachably connected to holder through axle, where tool jaw halves are supported on respective axles, while each axle is provided with pair of movable bolts
DE102016100823A1 (en) * 2016-01-19 2017-07-20 Propress Gmbh pressing device
DE102017127707A1 (en) 2017-11-23 2019-05-23 Viega Technology Gmbh & Co. Kg Interchangeable jaw for pressing tool
USD1025732S1 (en) * 2023-08-03 2024-05-07 Qing Dai Hydraulic tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707389A2 (en) 2012-12-28 2014-06-30 Fipe Ag Tool for axial pressing of fittings.
DE102013112848B3 (en) * 2013-11-21 2015-04-23 Viega Gmbh & Co. Kg Press tool with bistable tension mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725280A1 (en) * 1977-06-01 1978-12-14 Mannesmann Roehren Werke Ag Pipe connection system for thin metal pipes - uses compressible sleeve with conical section and ring collars
DE3247073C1 (en) * 1982-12-20 1984-05-03 Friedrich-Günther 1000 Berlin Laux Crimping pliers for cable or wire - has jaws with circular recesses for interchangeable tools
DE4446504C1 (en) * 1994-12-25 1996-03-28 Rothenberger Werkzeuge Masch Press tool for radial pressing of workpieces esp. fittings and pipes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725280A1 (en) * 1977-06-01 1978-12-14 Mannesmann Roehren Werke Ag Pipe connection system for thin metal pipes - uses compressible sleeve with conical section and ring collars
DE3247073C1 (en) * 1982-12-20 1984-05-03 Friedrich-Günther 1000 Berlin Laux Crimping pliers for cable or wire - has jaws with circular recesses for interchangeable tools
DE4446504C1 (en) * 1994-12-25 1996-03-28 Rothenberger Werkzeuge Masch Press tool for radial pressing of workpieces esp. fittings and pipes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804354A1 (en) * 2000-01-31 2001-08-03 Dubuis Et Cie M TIGHTENING TOOL AND PARTICULARLY CRIMPING
EP1122031A1 (en) * 2000-01-31 2001-08-08 M. Dubuis et Compagnie Clamping tool and especially crimping tool
DE102012100357A1 (en) 2012-01-17 2013-07-18 Viega Gmbh & Co. Kg Tool jaw, particularly pressing jaw, for compressing workpieces, has tool jaw half detachably connected to holder through axle, where tool jaw halves are supported on respective axles, while each axle is provided with pair of movable bolts
DE102012100357B4 (en) * 2012-01-17 2014-05-22 Viega Gmbh & Co. Kg Detachable tool jaw half
DE102016100823A1 (en) * 2016-01-19 2017-07-20 Propress Gmbh pressing device
EP3205455A1 (en) * 2016-01-19 2017-08-16 ProPress GmbH Compression device
DE102017127707A1 (en) 2017-11-23 2019-05-23 Viega Technology Gmbh & Co. Kg Interchangeable jaw for pressing tool
USD1025732S1 (en) * 2023-08-03 2024-05-07 Qing Dai Hydraulic tool

Also Published As

Publication number Publication date
DE29614804U1 (en) 1996-10-10
ATE200233T1 (en) 2001-04-15
EP0826441B1 (en) 2001-04-04
ES2155641T3 (en) 2001-05-16
DK0826441T3 (en) 2001-05-21
DE59703276D1 (en) 2001-05-10

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