EP1141486A1 - Anchoring screw for sleepers and the like. - Google Patents

Anchoring screw for sleepers and the like.

Info

Publication number
EP1141486A1
EP1141486A1 EP99966848A EP99966848A EP1141486A1 EP 1141486 A1 EP1141486 A1 EP 1141486A1 EP 99966848 A EP99966848 A EP 99966848A EP 99966848 A EP99966848 A EP 99966848A EP 1141486 A1 EP1141486 A1 EP 1141486A1
Authority
EP
European Patent Office
Prior art keywords
screw
thread
diameter
section
anchoring
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
EP99966848A
Other languages
German (de)
French (fr)
Other versions
EP1141486B1 (en
Inventor
Jörg BLUME
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.)
Schraubenwerk Zerbst GmbH
Original Assignee
Schraubenwerk Zerbst GmbH
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 Schraubenwerk Zerbst GmbH filed Critical Schraubenwerk Zerbst GmbH
Publication of EP1141486A1 publication Critical patent/EP1141486A1/en
Application granted granted Critical
Publication of EP1141486B1 publication Critical patent/EP1141486B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/10—Screws or bolts for sleepers

Definitions

  • the invention relates to the formation of a anchor screw for sleepers and the like. For rail or track attachment.
  • the rails are mounted on a stable substructure, for example concrete sleepers or concrete carriageways, using elongated screw bodies.
  • DE 33 24 225 C2 describes a fastening arrangement for rails on sleepers, in which the screw has a cylindrical shaft with a long thread for anchoring in the sleeper.
  • the subject of DE 39 09 826 AI is a classic threshold screw for wooden sleepers with a modified two-start thread. Threshold screws of this type have a long thread which merges into the threadless cylindrical shaft in the upper part of the screw.
  • the strength of the anchoring of the screw in the borehole is achieved by pushing a wire spiral onto the threads.
  • the object of the invention is to achieve a high degree of fastening security with the least possible effort.
  • the new anchoring screw has four basic features, namely
  • the length of the screw part, which includes the screw head and the shaft end with a metric thread, is approximately one third of the total screw length.
  • the threadless shank section of the anchoring screw adjoining the shortened sleeper screw thread is at least partially introduced into the core hole in concrete carriageways, concrete sleepers, etc. during assembly of the screw. This area of the screw shaft takes over a large part of the transverse forces that occur.
  • Fig. 2 is the top view of the screw
  • Fig. 3 shows the contour of the sleeper screw thread as a detail.
  • the new anchoring screw has a total length of 258 ⁇ 5 mm.
  • Sections 4.1 and 3 have an overall length
  • the inside diameter of the sleeper screw thread 1 is 16 + 0.5 mm.

Abstract

Disclosed is an anchoring screw for systems that secure rails. The rails are mounted using extended screw heads on a stable substructure such as concrete sleepers or concrete carriage-ways. According to the invention, the novel anchoring screw has four basic features: i.e. a shortened rail screw thread (1) that corresponds to approximately one third of the entire length of the screw; a shank section without a thread (3) and which is joined to the head of the screw (2), whereby the diameter thereof matches the external diameter of the thread of the rail screw; a metric thread in the end region of the upper part of the shank of the anchoring screw, whereby the diameter of the upper shank section (4) is smaller than the above-mentioned upper part of the screw (1,3); a screw head (2) with a diameter that is smaller than the maximum diameter of the shank of the screw. The metric thread in the upper part (4) of the screw enables axial forces to be transmitted via suitable connector elements.

Description

Verankerungsschraube für Schwellen und dgl.Anchoring screw for sleepers and the like
Die Erfindung betrifft die Ausbildung einer Nerankerungsschraube für Schwellen und dgl. zur Schienen- bzw. Gleisbefestigung.The invention relates to the formation of a anchor screw for sleepers and the like. For rail or track attachment.
Dabei werden die Schienen mittels langgestreckter Schraubenkörper auf einem stabilen Unterbau, beispielsweise Betonschwellen oder Betonfahrbahnen montiert.The rails are mounted on a stable substructure, for example concrete sleepers or concrete carriageways, using elongated screw bodies.
Zur Fixierung eines aus Schienen und Schwellen bestehenden Gleises auf einer festen Tragschicht aus beispielsweise Beton oder Asphalt sind verschiedene Schraubbefestigungen bekannt. Die Hauptfunktion bei einer derartigen Schraubbefestigung wird von der Verankerungsschraube übernommen, von der diverse Ausfuhrungsformen bekannt geworden sind (DE 33 24 225 C2, DE 39 09 826 AI, DE 41 13 381 AI, DE 44 08 986 AI).Various screw fastenings are known for fixing a track consisting of rails and sleepers to a solid base layer made of, for example, concrete or asphalt. The main function in such a screw fastening is taken over by the anchoring screw, of which various embodiments have become known (DE 33 24 225 C2, DE 39 09 826 AI, DE 41 13 381 AI, DE 44 08 986 AI).
In DE 33 24 225 C2 wird eine Befestigungsanordnung für Schienen auf Schwellen beschrieben, bei der die Schraube einen zylinderförmigen Schaft mit langem Gewinde zur Verankerung in der Schwelle aufweist.DE 33 24 225 C2 describes a fastening arrangement for rails on sleepers, in which the screw has a cylindrical shaft with a long thread for anchoring in the sleeper.
Gegenstand von DE 39 09 826 AI ist eine klassische Schwellenschraube für Holzschwellen mit einem modifizierten zweigängigen Gewinde. Derartige Schwellenschrauben haben ein Langgewinde, das im oberen Teil der Schraube in den gewindelosen zylindrischen Schaft übergeht.The subject of DE 39 09 826 AI is a classic threshold screw for wooden sleepers with a modified two-start thread. Threshold screws of this type have a long thread which merges into the threadless cylindrical shaft in the upper part of the screw.
Aus DE 44 08 986 AI ist eine Gleisbefestigung auf einer festen Tragschicht bekannt, bei der Zylinderschrauben mit einem metrischen Gewinde im Endbereich des Schraubenschaftes in einer Spannvorrichtung eingesetzt werden. Auch die Verankerungsanordnung nach DE 41 13 381 AI dient zum Befestigen eines mit Gewinde versehenen langgestreckten Körpers in Materialien wie Beton und dgl.. Diese Schrauben besitzen ein langgestrecktes Gewinde, das in einem Gewindekonus ausläuft. Der obere Teil des Schaftes ist gewindelos ausgeführt.From DE 44 08 986 AI a track fastening on a solid base layer is known in which cylinder screws with a metric thread in the end region of the screw shaft are used in a clamping device. The anchoring arrangement according to DE 41 13 381 AI also serves to fasten a threaded elongated body in materials such as concrete and the like. These screws have an elongated thread that ends in a thread cone. The upper part of the shaft is threadless.
Die Festigkeit der Verankerung der Schraube im Bohrloch wird durch das Aufschieben einer Drahtspirale auf die Gewindegänge erreicht.The strength of the anchoring of the screw in the borehole is achieved by pushing a wire spiral onto the threads.
Üblich bei Verankerungsschrauben für Schwellen und dgl. ist ein ausgeprägter, über den Schaftdurchmesser hinausragender Schraubenkopf zur Übertragung der axialen Kräfte.It is common for anchoring screws for sleepers and the like. A pronounced screw head that projects beyond the shaft diameter for transmitting the axial forces.
Aufgabe der Erfindung ist es, mit einem möglichst geringen Aufwand eine hohe Befestigungssicherheit zu erreichen.The object of the invention is to achieve a high degree of fastening security with the least possible effort.
Diese Aufgabe wird erfϊndungsgemäß durch die Merkmale des Hauptanspruchs gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.This object is achieved according to the features of the main claim, the subclaims show further advantageous embodiments of the invention.
Nach der Konzeption der Erfindung weist die neue Verankerungsschraube vier Grundmerkmale auf, nämlichAccording to the concept of the invention, the new anchoring screw has four basic features, namely
■ ein verkürztes Schwellenschrauben-Gewinde, das etwa nur noch ein Drittel der gesamten Schraubenlänge ausmacht,■ a shortened sleeper screw thread, which only makes up about a third of the total screw length,
■ daran zum Schraubenkopf hin anschließend ein Schaftabschnitt ohne Gewinde mit einem Durchmesser, der dem Außendurchmesser des Schwellenschrauben-Gewindes entspricht,A shaft section without thread with a diameter corresponding to the outside diameter of the sleeper screw thread,
■ ein metrisches Gewinde im Endbereich des oberen Teiles des Schaftes der Verankerungsschraube mit einem Durchmesser dieses oberen Schaftabschnittes, der etwas geringer ist als der vorbeschriebene untere Teil der Schraube,A metric thread in the end region of the upper part of the shank of the anchoring screw with a diameter of this upper shank section which is slightly smaller than the above-described lower part of the screw,
■ ein Schraubenkopf mit insbesondere einem Durchmesser, der kleiner ist als der maximale Durchmesser des Schraubenschaftes. Die Länge des Schraubenteiles, das den Schraubenkopf und das Schaftende mit metrischem Gewinde umfaßt, beträgt etwa ein Drittel der gesamten Schraubenlänge.A screw head with a diameter in particular that is smaller than the maximum diameter of the screw shaft. The length of the screw part, which includes the screw head and the shaft end with a metric thread, is approximately one third of the total screw length.
Mit dem metrischen Gewinde im oberen Teil der Schraube werden mittels geeigneter Verbindungselemente die axialen Kräfte übertragen.With the metric thread in the upper part of the screw, the axial forces are transmitted using suitable connecting elements.
Der sich an das verkürzte Schwellenschrauben-Gewinde anschließende gewindelose Schaftabschnitt der Verankerungsschraube wird bei der Montage der Schraube zumindest zum Teil in die Kernbohrung bei Betonfahrbahnen, Betonschwellen usw. eingebracht. Dadurch übernimmt dieser Bereich des Schraubenschaftes einen großen Teil der auftretenden Querkräfte.The threadless shank section of the anchoring screw adjoining the shortened sleeper screw thread is at least partially introduced into the core hole in concrete carriageways, concrete sleepers, etc. during assembly of the screw. This area of the screw shaft takes over a large part of the transverse forces that occur.
Nachfolgend die Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die zugehörige Zeichnung. Es zeigenThe following is a description of an exemplary embodiment with reference to the associated drawing. Show it
Fig. 1 die Seiten- bzw. Gesamtansicht der erfindungsgemäßen Verankerungsschraube,1 is a side or overall view of the anchoring screw according to the invention,
Fig. 2 die Kopfansicht der Schraube undFig. 2 is the top view of the screw and
Fig. 3 die Kontur des Schwellenschrauben-Gewindes als Einzelheit.Fig. 3 shows the contour of the sleeper screw thread as a detail.
Bei dem beschriebenen und in Fig. 1 und 2 dargestellten Ausführungsbeispiel hat die neue Verankerungsschraube eine Gesamtlänge von 258 ± 5 mm.In the exemplary embodiment described and shown in FIGS. 1 and 2, the new anchoring screw has a total length of 258 ± 5 mm.
Sie gliedert sich, in Fig. 1 von links nach rechts betrachtet, in die AbschnitteIt is divided into the sections, viewed from left to right in FIG. 1
■ nicht über den Schaftdurchmesser hinausragender Schraubenkopf 2 mit einem Schlüsselkopfdurchmesser von 17 - 0,8 mm;■ screw head 2 with a key head diameter of 17-0.8 mm, not projecting beyond the shaft diameter;
■ an den Schraubenkopf 2 anschließenden Abschnitt 4 mit metrischem Gewinde M22, wobei Schraubenkopf 2 und Schaftabschnitt 4 zusammen eine Länge von 80 + 5 mm besitzen;■ section 4 adjoining the screw head 2 with metric thread M22, the screw head 2 and shaft section 4 together having a length of 80 + 5 mm;
■ zwei Schaftabschnitte ohne Gewinde, wobei der Abschnitt 4.1 den Außendurchmesser 22 + 0,84 mm des Abschnitts 4 und der Abschnitt 3 den Außendurchmesser 24 + 0,84 mm des Schaftabschnittes mit Schwellenschrauben- Gewinde 1 aufweist. Die Abschnitte 4.1 und 3 haben eine Gesamtlänge■ two shaft sections without thread, section 4.1 the outer diameter 22 + 0.84 mm of section 4 and section 3 den Has outside diameter 24 + 0.84 mm of the shaft section with sleeper screw thread 1. Sections 4.1 and 3 have an overall length
1 = 95 mm , wovon die Ausdehnung z des Abschnittes 3 40 - 5 mm beträgt; ■ Schaftabschnitt mit Schwellenschrauben-Gewinde 1 der Länge 83 ± 5 mm.1 = 95 mm, of which the extension z of section 3 is 40-5 mm; ■ Shank section with sleeper screw thread 1 with a length of 83 ± 5 mm.
Der Innendurchmesser des Schwellenschrauben-Gewindes 1 beträgt 16 + 0,5 mm.The inside diameter of the sleeper screw thread 1 is 16 + 0.5 mm.
Aus Fig. 3, der vergrößerten Darstellung der Einzelheit X in Fig. 1 können zur Beschreibung von Kontur bzw. Hüllkurve des Schwellenschrauben-Gewindes die Winkel α = 50°, ß = 45°, γ = 5° entnommen werden. Der Abstand y zweier Gewindegänge beträgt etwa 12,5 mm. From FIG. 3, the enlarged representation of the detail X in FIG. 1, the angles α = 50 °, β = 45 °, γ = 5 ° can be taken to describe the contour or envelope curve of the sleeper screw thread. The distance y between two threads is approximately 12.5 mm.
LISTE DER BEZUGSZEICHENLIST OF REFERENCES
1 Schwellenschrauben-Gewinde1 threshold screw thread
2 Schraubenkopf2 screw heads
3 Schaftabschnitt ohne Gewinde3 shaft section without thread
4 Schaftabschnitt mit metrischem Gewinde4 shaft section with metric thread
4.1 Schaftabschnitt mit gleichem Außendurchmesser ohne Gewinde4.1 Shank section with the same outside diameter without thread
5 Gewindegang 5 threads

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Verankerungsschraube für Schwellen und dgl. zur Schienen- bzw. Gleisbefestigung auf einem stabilen Unterbau aus beispielsweise Beton oder Asphalt dadurch gekennzeichnet, daß die Schraube in achsialer Richtung vier Abschnitte aufweist, nämlich a) ein verkürztes Schwellenschrauben-Gewinde (1), dessen Länge nur noch etwa ein Drittel der gesamten Schraubenlänge beträgt, b) zum Schraubenkopf (2) hin anschließend ein Schaftteil ohne Gewinde (3), wobei der Durchmesser dieses Schaftteiles (3) dem Außendurchmesser des Schwellenschrauben-Gewindes (1) entspricht, c) einen Abschnitt mit metrischem Gewinde (4) im oberen Endbereich des Schraubenschaftes, wobei der Durchmesser dieses Schaftabschnittes (4) etwas geringer ist als die unteren Schaftabschnitte der Schraube gemäß a) und b), d) einen Schraubenkopf (2).1. Anchoring screw for sleepers and the like. For rail or track attachment on a stable substructure made of, for example, concrete or asphalt, characterized in that the screw has four sections in the axial direction, namely a) a shortened sleeper screw thread (1), the length of which is only about a third of the total screw length, b) towards the screw head (2) then a shaft part without thread (3), the diameter of this shaft part (3) corresponding to the outside diameter of the sleeper screw thread (1), c) a section with metric thread (4) in the upper end region of the screw shaft, the diameter of this shaft section (4) being slightly smaller than the lower shaft sections of the screw according to a) and b), d) a screw head (2).
2. Verankerungsschraube nach Anspruch 1, dadurch gekennzeichnet, daß die Länge des Schraubenteiles, das den Schraubenkopf (2) und den Schaftabschnitt mit metrischem Gewinde (4) umfaßt, etwa ein Drittel der gesamten Schraubenlänge beträgt.2. Anchoring screw according to claim 1, characterized in that the length of the screw part, which comprises the screw head (2) and the shaft portion with metric thread (4), is approximately one third of the total screw length.
3. Verankerungsschraube nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Durchmesser des Schraubenkopfes (2) kleiner ist als der maximale Durchmesser des Schraubenschaftes. 3. Anchoring screw according to claim 1 or 2, characterized in that the diameter of the screw head (2) is smaller than the maximum diameter of the screw shaft.
. Verankerungsschraube nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß bei einer Gesamtlänge der Schraube von 258 mm. Anchoring screw according to one of claims 1 to 3, characterized in that with a total length of the screw of 258 mm
■ der Abschnitt mit Schwellenschrauben-Gewinde (1) etwa 83 ± 5 mm■ the section with sleeper screw thread (1) is approximately 83 ± 5 mm
■ der Schaftabschnitt z ohne Gewinde (3) etwa 40 - 5 mm und■ the shaft section z without thread (3) about 40 - 5 mm and
■ der Schaftabschnitt mit metrischem Gewinde (4) zusammen mit dem Schraubenkopf (2) etwa 80 + 5 mm beträgt, wovon der Schraubenkopf (2) die Länge von etwa 20 mm aufweist.■ The shaft section with metric thread (4) together with the screw head (2) is approximately 80 + 5 mm, of which the screw head (2) has a length of approximately 20 mm.
■■
5. Verankerungsschraube nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schraube in den einzelnen Abschnitten folgende Durchmesser besitzt5. Anchoring screw according to one of claims 1 to 4, characterized in that the screw has the following diameter in the individual sections
■ Abschnitt mit Schwellenschrauben-Gewinde (1): Innendurchmesser = 16 ± 0,5 mm Außendurchmesser = 24 + 0,5 mm■ Section with sleeper screw thread (1): inner diameter = 16 ± 0.5 mm outer diameter = 24 + 0.5 mm
■ Abschnitt z ohne Gewinde (3): 24 ± 0,84 mm■ Section z without thread (3): 24 ± 0.84 mm
■ Schaftabschnitt zwischen dem Abschnitt z ohne Gewinde (3) und dem Schraubenkopf (2): 22 ± 0,84 mm, wobei ein metrisches Gewinde (4) M22 vorhanden ist,■ Shank section between section z without thread (3) and the screw head (2): 22 ± 0.84 mm, with a metric thread (4) M22 being present,
■ Schraubenkopf (2) mit einer Schlüsselweite von 17 - 0,8 mm.■ Screw head (2) with a wrench size of 17 - 0.8 mm.
6. Verankerungsschraube nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ausführung des Schwellenschrauben- Gewindes (1) beschrieben wird durch6. Anchoring screw according to one of claims 1 to 5, characterized in that the design of the sleeper screw Thread (1) is described by
■ den Abstand y zweier Gewindegänge (5), der etwa 12,5 mm beträgt,The distance y between two threads (5), which is approximately 12.5 mm,
■ die die Hüllkurve des Gewindelängsschnitts kennzeichnenden Winkel α≡-50° ß---45°■ the angles α≡-50 ° ß --- 45 ° which characterize the envelope of the longitudinal thread cut
γ=- 5°. γ = - 5 °.
EP99966848A 1998-12-23 1999-12-08 Anchoring screw for sleepers and the like for rail or track fastening Expired - Lifetime EP1141486B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19859696A DE19859696C1 (en) 1998-12-23 1998-12-23 Anchor screw for railway sleepers has different screw threads spaced by plain shank section
DE19859696 1998-12-23
PCT/DE1999/003930 WO2000039399A1 (en) 1998-12-23 1999-12-08 Anchoring screw for sleepers and the like.

Publications (2)

Publication Number Publication Date
EP1141486A1 true EP1141486A1 (en) 2001-10-10
EP1141486B1 EP1141486B1 (en) 2003-05-02

Family

ID=7892411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99966848A Expired - Lifetime EP1141486B1 (en) 1998-12-23 1999-12-08 Anchoring screw for sleepers and the like for rail or track fastening

Country Status (10)

Country Link
EP (1) EP1141486B1 (en)
CN (1) CN1132977C (en)
AT (1) ATE239137T1 (en)
AU (1) AU2276700A (en)
BG (1) BG63880B1 (en)
CZ (1) CZ294805B6 (en)
DE (2) DE19859696C1 (en)
HK (1) HK1042125B (en)
HR (1) HRP20010432B1 (en)
WO (1) WO2000039399A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021205129A1 (en) * 2020-04-09 2021-10-14 Le Clou S.V.A. Improved fixing element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257546A1 (en) * 2002-12-10 2004-07-01 TOGE-Dübel A. Gerhard KG Method for attaching a traffic control device to an asphalt pavement
DE102006001144A1 (en) 2006-01-06 2007-07-12 Bwg Gmbh & Co. Kg System for attaching rail to concrete sleeper, comprises plastic dowel and specifically shaped complementary screw

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE580783C (en) * 1932-03-22 1933-07-17 Benvenuto Biasi Railway sleeper screw with removable head
FR1595601A (en) * 1968-09-20 1970-06-15
DE2453713C3 (en) * 1974-11-13 1980-08-21 Upat Gmbh & Co, 7830 Emmendingen Method for laying and fastening rails on concrete foundation strips or the like
DE3324225C2 (en) * 1983-07-05 1994-02-03 Vossloh Werke Gmbh Fastening arrangement for rails on sleepers
DE3909826A1 (en) * 1989-03-25 1990-10-04 Ver Schraubenwerke Gmbh THRESHOLD SCREW FOR REPAIRING FASTENINGS FROM RAILS TO WOODEN SILLS AND USE OF THRESHOLD SCREW FOR REPAIR PURPOSES
US5006023A (en) * 1990-04-24 1991-04-09 Stanley Kaplan Strip-out preventing anchoring assembly and method of anchoring
DE4408986A1 (en) * 1994-02-23 1995-11-02 Weiss Gmbh & Co Leonhard Rail fitting onto concrete bed
DE19802267A1 (en) * 1998-01-22 1999-08-05 Gus Ring Gmbh & Co Vertriebs K Waistband screws

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0039399A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021205129A1 (en) * 2020-04-09 2021-10-14 Le Clou S.V.A. Improved fixing element
FR3109189A1 (en) * 2020-04-09 2021-10-15 Le Clou S.V.A. Improved fastening element

Also Published As

Publication number Publication date
DE59905367D1 (en) 2003-06-05
CZ294805B6 (en) 2005-03-16
HK1042125A1 (en) 2002-08-02
HRP20010432B1 (en) 2003-06-30
EP1141486B1 (en) 2003-05-02
ATE239137T1 (en) 2003-05-15
BG63880B1 (en) 2003-04-30
HRP20010432A2 (en) 2002-06-30
BG105551A (en) 2001-11-30
CZ20011911A3 (en) 2001-12-12
CN1132977C (en) 2003-12-31
WO2000039399A1 (en) 2000-07-06
DE19859696C1 (en) 2000-03-30
AU2276700A (en) 2000-07-31
CN1331770A (en) 2002-01-16
HK1042125B (en) 2004-01-16

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