DE69817276D1 - Wendelbohrer - Google Patents
WendelbohrerInfo
- Publication number
- DE69817276D1 DE69817276D1 DE69817276T DE69817276T DE69817276D1 DE 69817276 D1 DE69817276 D1 DE 69817276D1 DE 69817276 T DE69817276 T DE 69817276T DE 69817276 T DE69817276 T DE 69817276T DE 69817276 D1 DE69817276 D1 DE 69817276D1
- Authority
- DE
- Germany
- Prior art keywords
- drill bit
- flute
- web
- tip
- twist drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/04—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/18—Configuration of the drill point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/404—Flutes, i.e. chip conveying grooves with decreasing depth in a direction towards the shank from the tool tip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/60—Drills with pilots
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/905—Having stepped cutting edges
- Y10T408/906—Axially spaced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4801697P | 1997-05-29 | 1997-05-29 | |
US48016P | 1997-05-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69817276D1 true DE69817276D1 (de) | 2003-09-25 |
DE69817276T2 DE69817276T2 (de) | 2004-02-19 |
Family
ID=21952304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69817276T Expired - Lifetime DE69817276T2 (de) | 1997-05-29 | 1998-05-29 | Wendelbohrer |
Country Status (8)
Country | Link |
---|---|
US (2) | US6050754A (de) |
EP (1) | EP0893185B1 (de) |
CN (1) | CN1107566C (de) |
AT (1) | ATE247537T1 (de) |
CA (1) | CA2239240C (de) |
DE (1) | DE69817276T2 (de) |
DK (1) | DK0893185T3 (de) |
ES (1) | ES2201412T3 (de) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2239240C (en) * | 1997-05-29 | 2005-08-09 | Rickey J. Thomas | Improved self-centering drill bit with pilot tip, and process |
IL131119A0 (en) * | 1999-07-26 | 2001-01-28 | Hanita Metal Works Ltd | Milling cutter |
CA2327937C (en) * | 1999-12-10 | 2009-01-20 | Maxtech Manufacturing Inc. | Drill bit for non-linear drilling |
US6443674B1 (en) | 2000-05-19 | 2002-09-03 | Ics Cutting Tools, Inc. | Self-centering twist drill having a modified flat bottom section and a helical crown point tip |
SE516229C2 (sv) * | 2000-05-26 | 2001-12-03 | Eero Nygaard | Borrspets |
US9199315B2 (en) * | 2000-06-02 | 2015-12-01 | Kennametal Inc. | Twist drill and method for producing a twist drill which method includes forming a flute of a twist drill |
US6663808B2 (en) * | 2001-01-26 | 2003-12-16 | Milliken & Company | Method of producing textile reinforced thermoplastic or thermoset pipes utilizing modified dorn structures |
US6431962B1 (en) | 2000-10-05 | 2002-08-13 | Kennametal Inc. | Method and apparatus for making a cutting tool having a flute |
US6419561B1 (en) | 2000-10-05 | 2002-07-16 | Kennametal Inc. | Method and apparatus for making a cutting tool having a plurality of margins |
US6602029B1 (en) | 2000-10-05 | 2003-08-05 | Kennametal Inc. | Cutting tool and method and apparatus for making the same |
JP4938979B2 (ja) | 2002-05-31 | 2012-05-23 | ヴァイダケア、コーパレイシャン | 骨髄にアクセスする装置および方法 |
US11337728B2 (en) | 2002-05-31 | 2022-05-24 | Teleflex Life Sciences Limited | Powered drivers, intraosseous devices and methods to access bone marrow |
US8641715B2 (en) | 2002-05-31 | 2014-02-04 | Vidacare Corporation | Manual intraosseous device |
WO2008033872A2 (en) * | 2006-09-12 | 2008-03-20 | Vidacare Corporation | Biopsy devices and related methods |
US8668698B2 (en) | 2002-05-31 | 2014-03-11 | Vidacare Corporation | Assembly for coupling powered driver with intraosseous device |
US10973545B2 (en) | 2002-05-31 | 2021-04-13 | Teleflex Life Sciences Limited | Powered drivers, intraosseous devices and methods to access bone marrow |
US11298202B2 (en) | 2002-05-31 | 2022-04-12 | Teleflex Life Sciences Limited | Biopsy devices and related methods |
DE20210909U1 (de) * | 2002-07-18 | 2003-05-15 | HAKOS Präzisionswerkzeuge Hakenjos GmbH, 78054 Villingen-Schwenningen | Bohrwerkzeug |
US7832966B2 (en) * | 2003-01-30 | 2010-11-16 | Kennametal Inc. | Drill for making flat bottom hole |
US7140815B2 (en) * | 2003-01-30 | 2006-11-28 | Kennametal Inc. | Drill for making flat bottom hole |
US9504477B2 (en) | 2003-05-30 | 2016-11-29 | Vidacare LLC | Powered driver |
GB2405606A (en) * | 2003-09-08 | 2005-03-09 | Black & Decker Inc | Self-centering drill bit with pilot tip |
EP1512476B1 (de) * | 2003-09-08 | 2013-10-09 | Black & Decker Inc. | Selbstzentrierendes Bohrwerkzeug mit Pilotschneidteil |
US20050053439A1 (en) * | 2003-09-09 | 2005-03-10 | Yuhong Wang | Two-flute twist drill |
ATE367906T1 (de) * | 2003-11-17 | 2007-08-15 | Bosch Gmbh Robert | Bohr- und/oder meisselwerkzeug |
US7101125B2 (en) * | 2003-12-17 | 2006-09-05 | Kennametal Inc. | Twist drill |
DE102004026014B4 (de) * | 2004-05-27 | 2008-04-17 | Horst Miebach Gmbh | Spiralbohrer |
US7520703B2 (en) * | 2004-09-07 | 2009-04-21 | Black & Decker Inc. | Twist drill with a pilot tip |
DE102004058163A1 (de) * | 2004-12-02 | 2006-06-08 | Kennametal Inc. | Bohr-/Faswerkzeug |
SI1851402T1 (sl) * | 2005-02-22 | 2010-08-31 | Geistlich Soehne Ag | Sidro stebra in steber, ki je opremljen z njim |
WO2007010601A1 (ja) * | 2005-07-20 | 2007-01-25 | Osg Corporation | ドリル |
GB2428611B (en) † | 2005-08-02 | 2007-10-03 | Dormer Tools | Twist drill |
KR100797797B1 (ko) | 2006-01-11 | 2008-01-24 | 현일균 | 절삭공구 및 그 제조방법 |
US8944069B2 (en) | 2006-09-12 | 2015-02-03 | Vidacare Corporation | Assemblies for coupling intraosseous (IO) devices to powered drivers |
CN104814768B (zh) | 2006-09-12 | 2018-04-13 | 维达保健有限责任公司 | 医疗程序托盘及相关方法 |
US20080166194A1 (en) * | 2007-01-09 | 2008-07-10 | Durfee Laverne R | Drill bit |
US20100003094A1 (en) * | 2007-01-09 | 2010-01-07 | Irwin Industrial Tool Company | Drill bit |
JP4809283B2 (ja) * | 2007-04-23 | 2011-11-09 | ユニオンツール株式会社 | 回転切削工具 |
DE102007050050A1 (de) * | 2007-10-17 | 2009-04-23 | Kennametal Inc. | Rundlaufwerkzeug, insbesondere Bohrer |
US8070397B2 (en) * | 2008-02-19 | 2011-12-06 | Irwin Industrial Tool Company | Self feed bit |
JP2011514263A (ja) * | 2008-03-19 | 2011-05-06 | リー、シーチン | らせん状差込バイト |
SE532432C2 (sv) * | 2008-05-09 | 2010-01-19 | Sandvik Intellectual Property | Borrkropp med primära och sekundära släppningsytor |
US8740515B2 (en) | 2008-09-03 | 2014-06-03 | Black & Decker Inc. | Metal cutting drill bit |
US20100307640A1 (en) * | 2009-06-03 | 2010-12-09 | Durfee La Verne R | Cutting edge and cutting tool |
IL211236A0 (en) * | 2011-02-15 | 2011-04-28 | Vladimir Volokh | Rotary cutter |
EP2502708B1 (de) | 2011-03-22 | 2017-02-01 | Black & Decker Inc. | Meissel |
KR20130032671A (ko) * | 2011-09-23 | 2013-04-02 | 대구텍 유한회사 | 복합 소재용 드릴 공구 |
US9656331B2 (en) * | 2011-11-15 | 2017-05-23 | Kennametal Inc. | System and method for simultaneously forming flutes in solid carbide tools |
US9579732B2 (en) | 2012-07-18 | 2017-02-28 | Milwaukee Electric Tool Corporation | Hole saw |
USD737875S1 (en) | 2013-03-15 | 2015-09-01 | Black & Decker Inc. | Drill bit |
USD734792S1 (en) | 2013-03-15 | 2015-07-21 | Black & Decker Inc. | Drill bit |
US9333564B2 (en) | 2013-03-15 | 2016-05-10 | Black & Decker Inc. | Drill bit |
CN104174904A (zh) * | 2013-05-21 | 2014-12-03 | 苏州锑玛精密机械有限公司 | 一种高精度内冷钻 |
CN104174907A (zh) * | 2013-05-21 | 2014-12-03 | 苏州锑玛精密机械有限公司 | 一种内冷钻 |
WO2014197761A1 (en) | 2013-06-06 | 2014-12-11 | Milwaukee Electric Tool Corporation | Step drill bit |
EP2842673B1 (de) | 2013-08-29 | 2018-11-21 | Black & Decker Inc. | Bohrer |
DE102014212714B4 (de) * | 2014-07-01 | 2022-02-17 | Kennametal Inc. | Bohrerkopf |
US11407039B2 (en) * | 2018-01-29 | 2022-08-09 | Milwaukee Electric Tool Corporation | Drill bit |
US11273501B2 (en) | 2018-04-26 | 2022-03-15 | Milwaukee Electric Tool Corporation | Step drill bit |
CN110605425A (zh) * | 2018-06-15 | 2019-12-24 | 上海惠而顺精密工具股份有限公司 | 硬质合金印制电路板蜡烛钻 |
US11679442B2 (en) | 2018-06-22 | 2023-06-20 | Maestro Logistics, Llc | Drill bit and method for making a drill bit |
CN216028284U (zh) | 2018-07-10 | 2022-03-15 | 米沃奇电动工具公司 | 孔锯 |
CN209157232U (zh) * | 2018-10-09 | 2019-07-26 | 米沃奇电动工具公司 | 钻头 |
CN112077370A (zh) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | 可转位钻头刀片 |
CN113924180A (zh) | 2019-06-20 | 2022-01-11 | 米沃奇电动工具公司 | 具有圆形侧壁开口的孔锯 |
USD958855S1 (en) | 2019-12-09 | 2022-07-26 | Milwaukee Electric Tool Corporation | Hole saw |
JP7268691B2 (ja) * | 2021-01-27 | 2023-05-08 | 株式会社タンガロイ | ドリル |
US11865629B2 (en) | 2021-11-04 | 2024-01-09 | Kennametal Inc. | Rotary cutting tool with high ramp angle capability |
US20240051039A1 (en) | 2022-08-10 | 2024-02-15 | Black & Decker Inc. | Drill bit with multi-stepped tip |
Family Cites Families (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US460639A (en) * | 1891-10-06 | Marking twist-drills | ||
US542223A (en) * | 1895-07-02 | Drilling-tool | ||
US1398156A (en) * | 1919-07-28 | 1921-11-22 | Frank P Schroder | Tap |
US1499584A (en) * | 1920-10-07 | 1924-07-01 | Isaac W Litchfield | Tool for drilling or boring metals |
US1984839A (en) * | 1932-05-21 | 1934-12-18 | Neville Ryland Davis | Identification means for tools |
US2101347A (en) * | 1936-06-24 | 1937-12-07 | Willard C Robinette | Tap |
US2193186A (en) * | 1938-06-06 | 1940-03-12 | Herbert G Hard | Twist drill |
US2332295A (en) * | 1941-11-07 | 1943-10-19 | Western Electric Co | Drill |
US2652083A (en) * | 1951-08-02 | 1953-09-15 | Cleveland Twist Drill Co | Wood bit |
US2708853A (en) * | 1953-07-16 | 1955-05-24 | Steel Company | Metal cutting tool with improved joint |
US2740974A (en) * | 1954-03-15 | 1956-04-10 | Lewis Lazarus | Rotary metal cutting tool having a locally annealed shank portion |
US2936658A (en) * | 1956-08-08 | 1960-05-17 | Oscar L Riley | Twist drill |
US3387511A (en) * | 1966-05-02 | 1968-06-11 | Lockheed Aircraft Corp | Twist drill |
US3592555A (en) * | 1969-05-02 | 1971-07-13 | Radial Lip Machine Corp | Drill with discontinuous cutting lips |
US3779664A (en) * | 1971-12-30 | 1973-12-18 | Boeing Co | Drill with guide tip |
DE2629130A1 (de) * | 1976-06-29 | 1978-01-12 | Erwin Junker | Verfahren und vorrichtung zum schleifen der spannuten von spiralbohrern |
DE7833000U1 (de) * | 1978-11-07 | 1980-04-17 | Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim | Kombiniertes bohr- und fraeswerkzeug |
DE2946103A1 (de) * | 1979-11-15 | 1981-05-21 | Rohde & Dörrenberg, 4000 Düsseldorf | Werkzeug |
US4340327A (en) * | 1980-07-01 | 1982-07-20 | Gulf & Western Manufacturing Co. | Tool support and drilling tool |
DE3381941D1 (de) * | 1982-06-29 | 1990-11-22 | Gelsen Karl Heinz | Bohrgeraet. |
US4529341A (en) * | 1982-09-29 | 1985-07-16 | Hughes Helicopters, Inc. | Drill bit for Kevlar laminates |
US4556347A (en) * | 1984-05-11 | 1985-12-03 | Lockheed Corporation | Split-point twist drill |
SU1238905A1 (ru) * | 1984-09-12 | 1986-06-23 | Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина | Сверло дл сверлени полимерных композиционных материалов |
JPS61226209A (ja) * | 1985-03-30 | 1986-10-08 | Mitsubishi Metal Corp | ドリル |
DE8536123U1 (de) * | 1985-12-21 | 1987-04-16 | Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim | Bohrwerkzeug |
JPS62188614A (ja) * | 1986-02-12 | 1987-08-18 | Mitsubishi Metal Corp | ドリル |
US4968193A (en) * | 1986-08-18 | 1990-11-06 | Black & Decker Corporation | Self-centering drill bit with pilot tip |
US5288183A (en) * | 1986-08-18 | 1994-02-22 | Black & Decker Inc. | Self-centering drill bit with pilot tip |
US4756650A (en) * | 1986-11-26 | 1988-07-12 | Kabushiki Kaisha Kobe Seiko Sho | Twist drill |
EP0320881B2 (de) * | 1987-12-14 | 2003-10-22 | Mitsubishi Materials Corporation | Spiralbohrer |
CN88203889U (zh) * | 1988-02-29 | 1988-11-23 | 陈贵友 | 阶梯式麻花钻头 |
US5011342A (en) * | 1988-03-14 | 1991-04-30 | 501 Greenfield Industries, Inc. | Twist drill |
CN2036077U (zh) * | 1988-04-20 | 1989-04-19 | 江西量具刃具厂 | 深孔麻花钻 |
US4898503A (en) * | 1988-07-05 | 1990-02-06 | Lockheed Corporation | Twist drill |
US5056967A (en) * | 1989-03-28 | 1991-10-15 | Premier Industrial Corporation | Spotweld removal tool |
JPH03184707A (ja) * | 1989-12-15 | 1991-08-12 | Hitachi Ltd | ツイストドリル |
CH675842A5 (en) * | 1990-01-18 | 1990-11-15 | Tungstentools S A | Twist drill with variable depth helix - has core with different diameter sections proportionate to spiral diameter and with specified conicity |
CN2075996U (zh) * | 1990-07-05 | 1991-05-01 | 熊鹤龄 | 群花钻头 |
JPH04244311A (ja) * | 1991-01-29 | 1992-09-01 | Hitachi Ltd | 三段ウエブテーパドリル |
DE4117486C2 (de) * | 1991-05-28 | 1995-07-27 | Hitachi Seiko Kk | Bohrer |
US5152642A (en) * | 1991-06-12 | 1992-10-06 | Hextap, Inc. | Metal injection molded rotary metal cutting tool |
CN1074155A (zh) * | 1992-01-09 | 1993-07-14 | 北京起重机器厂 | 麻花钻头 |
GB9216699D0 (en) * | 1992-08-06 | 1992-09-23 | British Aerospace | Cutting tools of composite carbide construction |
CA2239240C (en) * | 1997-05-29 | 2005-08-09 | Rickey J. Thomas | Improved self-centering drill bit with pilot tip, and process |
-
1998
- 1998-05-29 CA CA002239240A patent/CA2239240C/en not_active Expired - Fee Related
- 1998-05-29 DE DE69817276T patent/DE69817276T2/de not_active Expired - Lifetime
- 1998-05-29 EP EP98304288A patent/EP0893185B1/de not_active Expired - Lifetime
- 1998-05-29 CN CN98102920A patent/CN1107566C/zh not_active Expired - Fee Related
- 1998-05-29 DK DK98304288T patent/DK0893185T3/da active
- 1998-05-29 ES ES98304288T patent/ES2201412T3/es not_active Expired - Lifetime
- 1998-05-29 US US09/087,157 patent/US6050754A/en not_active Expired - Lifetime
- 1998-05-29 AT AT98304288T patent/ATE247537T1/de not_active IP Right Cessation
-
2000
- 2000-03-06 US US09/519,180 patent/US6190097B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DK0893185T3 (da) | 2003-09-08 |
CA2239240C (en) | 2005-08-09 |
DE69817276T2 (de) | 2004-02-19 |
ATE247537T1 (de) | 2003-09-15 |
EP0893185B1 (de) | 2003-08-20 |
CA2239240A1 (en) | 1998-11-29 |
US6050754A (en) | 2000-04-18 |
ES2201412T3 (es) | 2004-03-16 |
CN1107566C (zh) | 2003-05-07 |
CN1223184A (zh) | 1999-07-21 |
US6190097B1 (en) | 2001-02-20 |
EP0893185A1 (de) | 1999-01-27 |
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