ES2185989T3 - Metodo y aparato para la fabricacion de herramientas abrasivas. - Google Patents
Metodo y aparato para la fabricacion de herramientas abrasivas.Info
- Publication number
- ES2185989T3 ES2185989T3 ES97939500T ES97939500T ES2185989T3 ES 2185989 T3 ES2185989 T3 ES 2185989T3 ES 97939500 T ES97939500 T ES 97939500T ES 97939500 T ES97939500 T ES 97939500T ES 2185989 T3 ES2185989 T3 ES 2185989T3
- Authority
- ES
- Spain
- Prior art keywords
- manufacture
- fibers
- abrasive tools
- reinforced
- wheels
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/564—Winding and joining, e.g. winding spirally for making non-tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0081—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for of wire-reinforced grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
- B24D5/08—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental with reinforcing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
- B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
- B29K2105/101—Oriented
- B29K2105/108—Oriented arranged in parallel planes and crossing at substantial angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/736—Grinding or polishing equipment
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Treatment Of Fiber Materials (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
SE DESCRIBEN PROCEDIMIENTOS PARA ORIENTAR FIBRAS Y UN APARATO PARA ORIENTAR FIBRAS PARA LA FABRICACION DE RUEDAS ABRASIVAS DELGADAS MEJORADAS UTILIZANDO DISCOS REFORZADOS CON FIBRAS NO TEJIDAS Y UNIFORMES. ESTAS HERRAMIENTAS PRESENTAN UNA MEJOR RESISTENCIA A LA EXPULSION DEL MEDIO QUE LAS RUEDAS REFORZADAS CON TELA DE FIBRA TEJIDA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/706,085 US5913994A (en) | 1996-08-30 | 1996-08-30 | Method for fabricating abrasive discs |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2185989T3 true ES2185989T3 (es) | 2003-05-01 |
Family
ID=24836168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97939500T Expired - Lifetime ES2185989T3 (es) | 1996-08-30 | 1997-08-22 | Metodo y aparato para la fabricacion de herramientas abrasivas. |
Country Status (22)
Country | Link |
---|---|
US (3) | US5913994A (es) |
EP (1) | EP0923428B1 (es) |
JP (2) | JP3556675B2 (es) |
KR (1) | KR100312672B1 (es) |
CN (1) | CN1066379C (es) |
AR (1) | AR009343A1 (es) |
AT (1) | ATE226871T1 (es) |
AU (1) | AU712146B2 (es) |
BR (1) | BR9713183A (es) |
CA (1) | CA2260096C (es) |
CO (1) | CO4750687A1 (es) |
DE (1) | DE69716751T2 (es) |
DK (1) | DK0923428T3 (es) |
ES (1) | ES2185989T3 (es) |
NO (1) | NO990954D0 (es) |
PL (1) | PL185308B1 (es) |
PT (1) | PT923428E (es) |
RU (1) | RU2162790C2 (es) |
SK (1) | SK285011B6 (es) |
TW (1) | TW375557B (es) |
WO (1) | WO1998008655A1 (es) |
ZA (1) | ZA977369B (es) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW550141B (en) * | 1999-07-29 | 2003-09-01 | Saint Gobain Abrasives Inc | Depressed center abrasive wheel assembly and abrasive wheel assembly |
FR2843758B1 (fr) * | 2002-08-22 | 2005-03-11 | Eads Launch Vehicles | Procede pour la realisation d'une preforme textile multidirectionnelle et piece en materiau composite incorporant ladite preforme |
US20060288993A1 (en) * | 2005-06-27 | 2006-12-28 | Anthony Baratta | Tools and methods for making and using tools, blades and methods of making and using blades |
US20060288992A1 (en) * | 2005-06-27 | 2006-12-28 | Anthony Baratta | Tools and methods for making and using tools, blades and methods of making and using blades |
US8151783B2 (en) * | 2005-06-27 | 2012-04-10 | Husqvarna Outdoor Products Inc. | Tools and methods for making and using tools, blades and methods of making and using blades |
ES2320944A1 (es) * | 2005-12-02 | 2009-05-29 | Fpk, S.A. | Pieza composite reforzada por una parte de fibra realizable mediante diversos procesos de bobinado o aplicacion directa de filamentos unidireccionales de fibra, y sus metodos de fabricacion. |
KR100764035B1 (ko) * | 2005-12-23 | 2007-10-09 | 동영다이아몬드공업(주) | 석재 가공용 연마구의 제조방법 |
EP1849588B1 (en) * | 2006-04-27 | 2011-06-01 | AKsys GmbH | Method of manufacture of a composite part |
US7869896B2 (en) * | 2006-08-24 | 2011-01-11 | Jtekt Corporation | Tangential grinding resistance measuring method and apparatus, and applications thereof to grinding condition decision and wheel life judgment |
US8808412B2 (en) * | 2006-09-15 | 2014-08-19 | Saint-Gobain Abrasives, Inc. | Microfiber reinforcement for abrasive tools |
DE102008011517A1 (de) * | 2008-03-02 | 2009-09-03 | Schottdorf, Bernd, Dr. | Verfahren, Vorrichtung und Stützstruktur sowie deren Verwendung zur Herstellung eines Faserverbundteils |
EP2384260B1 (en) * | 2008-12-30 | 2018-07-04 | Saint-Gobain Abrasives, Inc. | Reinforced bonded abrasive tools |
EP2177318B1 (en) * | 2009-04-30 | 2014-03-26 | Saint-Gobain Abrasives, Inc. | Abrasive article with improved grain retention and performance |
US8808413B2 (en) * | 2009-08-03 | 2014-08-19 | Saint-Gobain Abrasives, Inc. | Abrasive tool having controlled porosity distribution |
US10195717B2 (en) * | 2009-08-03 | 2019-02-05 | Saint-Gobain Abrasives | Abrasive tool having a particular porosity variation |
FR2954723B1 (fr) * | 2009-12-29 | 2012-04-20 | Saint Gobain Abrasives Inc | Article abrasif comprenant un espace creux entre ses faces avant et arriere, et procede de fabrication |
DE102012101721B4 (de) * | 2012-03-01 | 2017-11-02 | Benteler Automobiltechnik Gmbh | Verwendung eines Wickelrahmens zur Herstellung eines Faserverbundwerkstoffbauteils |
DE102012101724B4 (de) * | 2012-03-01 | 2017-02-23 | Benteler Automobiltechnik Gmbh | Faserwerkstoffrohling zur Herstellung eines Faserwerkstoffverbundbauteils |
DE102012101726B4 (de) * | 2012-03-01 | 2016-11-10 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Faserwerkstoffrohlings |
RU2497652C1 (ru) * | 2012-04-16 | 2013-11-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный технический университет" | Способ упрочнения абразивных кругов |
DE102013110186B4 (de) * | 2013-09-16 | 2016-11-03 | Benteler Automobiltechnik Gmbh | Vorrichtung und Verfahren zur Herstellung eines Faserhalbzeuges |
WO2015066407A1 (en) * | 2013-10-31 | 2015-05-07 | United Technologies Corporation | A method for selective placement of reinforcing fibers in polymeric components |
DE102015103161B4 (de) | 2015-03-04 | 2017-04-20 | Benteler Automobiltechnik Gmbh | Faserwickelanlage sowie Verfahren zur Herstellung eines Faserwerkstoffrohlings |
DE102016208232A1 (de) * | 2016-05-12 | 2017-11-16 | Airbus Operations Gmbh | Verfahren und Vorrichtung zur Herstellung eines Halbzeugs |
US10773469B2 (en) * | 2017-02-21 | 2020-09-15 | Seriforge Inc. | Systems and methods of converting fiber into shaped fabric plies for composite preforms and products |
EP3470557A1 (de) * | 2017-10-12 | 2019-04-17 | Lenzing Aktiengesellschaft | Spinnvorrichtung und verfahren zum anspinnen einer spinnvorrichtung |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3116986A (en) * | 1960-03-25 | 1964-01-07 | Cincinnati Milling Machine Co | Method of making cold-molded abrasive wheel |
US3146560A (en) * | 1960-06-14 | 1964-09-01 | Rexall Drug Chemical | Abrasive products |
US3121981A (en) * | 1960-09-23 | 1964-02-25 | Rexall Drug Chemical | Abrasive wheels and method of making the same |
DE1291648B (de) * | 1962-12-04 | 1969-03-27 | Itt Ind Gmbh Deutsche | Schleifscheibe mit Verstaerkungsgeflecht |
US3262230A (en) * | 1964-02-10 | 1966-07-26 | Norton Co | Reinforcement of molded abrasive articles |
US3477180A (en) * | 1965-06-14 | 1969-11-11 | Norton Co | Reinforced grinding wheels and reinforcement network therefor |
US3425884A (en) * | 1967-11-06 | 1969-02-04 | Crompton & Knowles Corp | Method of making an open mesh,rigid,glass fiber reinforced resin structure |
US3686048A (en) * | 1969-10-14 | 1972-08-22 | Air Logistics Corp | Fiber reinforced parallel resinous structure fabrication |
US3645833A (en) * | 1970-05-20 | 1972-02-29 | Us Army | Article and method of quasi-isotropic core filaments |
US3838543A (en) * | 1970-05-25 | 1974-10-01 | Norton Co | High speed cut-off wheel |
US3755054A (en) * | 1971-07-19 | 1973-08-28 | J Medney | Resin bonded glass fiber fence |
US3772126A (en) * | 1971-10-21 | 1973-11-13 | M & M Intern Plastics Inc | Apparatus and method for making fiberglass grating |
US3793783A (en) * | 1972-10-02 | 1974-02-26 | Norton Co | Segmental cut-off grinding wheel |
US4021209A (en) * | 1975-07-23 | 1977-05-03 | Federal-Mogul Corporation | Aramid fiber reinforced abrasive wheel |
JPS5632293Y2 (es) * | 1976-09-13 | 1981-07-31 | ||
AT355448B (de) * | 1977-09-23 | 1980-03-10 | Swarovski Tyrolit Schleif | Verfahren zum impraegnieren von armierungs- fasern, armierungsgeweben, vliesen od.dgl. |
US4230461A (en) * | 1977-09-29 | 1980-10-28 | Eli Sandman Company | Abrasive wheels |
FR2432364A1 (fr) * | 1978-08-04 | 1980-02-29 | Swarovski Tyrolit Schleif | Meule comportant des grains abrasifs, un agglomerant et des fibres a haute resistance |
US4259089A (en) * | 1978-08-10 | 1981-03-31 | Tyrolit Schleifmittelwerke Swarovski K.G. | Grinding wheel containing grain-coated reinforcement fibers and method of making it |
DE2942217A1 (de) * | 1978-10-18 | 1980-04-30 | Daichiku Co Ltd | Hochgeschwindigkeitsschleifstein und verfahren zu seiner herstellung |
US4253850A (en) * | 1979-08-17 | 1981-03-03 | Norton Company | Resin bonded abrasive bodies for snagging metal containing low abrasive and high filler content |
DE3003666A1 (de) * | 1980-02-01 | 1981-08-06 | Richard 4937 Lage Pott | Gelege zur herstellung einer verstaerkung von im wesentlichen aus flaechen bestehenden bauteilen und eine vorrichtung zur herstellung desselben |
US4350497A (en) * | 1980-09-08 | 1982-09-21 | Abraham Ogman | Reinforced grinding device |
US4800685A (en) * | 1984-05-31 | 1989-01-31 | Minnesota Mining And Manufacturing Company | Alumina bonded abrasive for cast iron |
DE3404871A1 (de) * | 1983-02-14 | 1984-08-23 | Rands, Mary, Los Angeles, Calif. | Schleif-, hon- oder abreibkoerper |
US4657563A (en) * | 1985-10-31 | 1987-04-14 | Norton Company | Resin bonded grinding wheels with fillers |
US4715150A (en) * | 1986-04-29 | 1987-12-29 | Seiken Co., Ltd. | Nonwoven fiber abrasive disk |
US5015540A (en) * | 1987-06-01 | 1991-05-14 | General Electric Company | Fiber-containing composite |
US4989375A (en) * | 1988-05-28 | 1991-02-05 | Noritake Co., Limited | Grinding wheel having high impact resistance, for grinding rolls as installed in place |
DE3819199A1 (de) * | 1988-06-06 | 1989-12-07 | Leurop Leutheusser Kg | Verfahren zur herstellung von glasfaserronden fuer schleif- oder trennscheiben und vorrichtung zur durchfuehrung des verfahrens |
GB8822520D0 (en) * | 1988-09-26 | 1988-11-02 | Tech Textiles Ltd | Process for continuously forming reinforced plastics articles |
GB9008293D0 (en) * | 1990-04-11 | 1990-06-13 | Ferodo Ltd | Fabrication of friction elements |
DE4234083A1 (de) * | 1992-10-09 | 1994-04-14 | Olbo Textilwerke Gmbh | Verfahren und Vorrichtung zum Legen von Fäden |
US5431596A (en) * | 1993-04-28 | 1995-07-11 | Akita; Hiroshi | Grinding wheel and a method for manufacturing the same |
EP0707943B1 (de) * | 1994-10-18 | 1998-08-05 | LEUROP Leutheusser KG Schleifmittelwerk | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von glasfaserronden für Schleif- und Trennscheiben |
DE19549078C2 (de) * | 1995-12-29 | 2000-06-29 | Gerd Muennekehoff | Verfahren und Vorrichtung zum Herstellen von gitternetzartigen Fadengelegen |
-
1996
- 1996-08-30 US US08/706,085 patent/US5913994A/en not_active Expired - Fee Related
-
1997
- 1997-08-15 ZA ZA9707369A patent/ZA977369B/xx unknown
- 1997-08-19 TW TW086111859A patent/TW375557B/zh not_active IP Right Cessation
- 1997-08-22 RU RU99104180/02A patent/RU2162790C2/ru not_active IP Right Cessation
- 1997-08-22 PL PL97331758A patent/PL185308B1/pl not_active IP Right Cessation
- 1997-08-22 CA CA002260096A patent/CA2260096C/en not_active Expired - Fee Related
- 1997-08-22 DK DK97939500T patent/DK0923428T3/da active
- 1997-08-22 DE DE69716751T patent/DE69716751T2/de not_active Expired - Lifetime
- 1997-08-22 AT AT97939500T patent/ATE226871T1/de active
- 1997-08-22 JP JP51174898A patent/JP3556675B2/ja not_active Expired - Fee Related
- 1997-08-22 PT PT97939500T patent/PT923428E/pt unknown
- 1997-08-22 EP EP97939500A patent/EP0923428B1/en not_active Expired - Lifetime
- 1997-08-22 AU AU41574/97A patent/AU712146B2/en not_active Ceased
- 1997-08-22 WO PCT/US1997/014790 patent/WO1998008655A1/en active IP Right Grant
- 1997-08-22 CN CN97197572A patent/CN1066379C/zh not_active Expired - Fee Related
- 1997-08-22 ES ES97939500T patent/ES2185989T3/es not_active Expired - Lifetime
- 1997-08-22 SK SK222-99A patent/SK285011B6/sk not_active IP Right Cessation
- 1997-08-22 BR BR9713183-0A patent/BR9713183A/pt not_active IP Right Cessation
- 1997-08-26 AR ARP970103881A patent/AR009343A1/es active IP Right Grant
- 1997-08-28 CO CO97049948A patent/CO4750687A1/es unknown
-
1999
- 1999-02-03 KR KR1019997000917A patent/KR100312672B1/ko not_active IP Right Cessation
- 1999-02-26 NO NO990954A patent/NO990954D0/no not_active Application Discontinuation
- 1999-03-19 US US09/272,883 patent/US6162322A/en not_active Expired - Fee Related
-
2000
- 2000-09-27 US US09/671,442 patent/US6609964B1/en not_active Expired - Fee Related
-
2004
- 2004-03-02 JP JP2004057507A patent/JP2004160657A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
PT923428E (pt) | 2003-03-31 |
TW375557B (en) | 1999-12-01 |
ATE226871T1 (de) | 2002-11-15 |
AR009343A1 (es) | 2000-04-12 |
DE69716751T2 (de) | 2003-07-03 |
SK285011B6 (sk) | 2006-04-06 |
CA2260096A1 (en) | 1998-03-05 |
AU712146B2 (en) | 1999-10-28 |
US6162322A (en) | 2000-12-19 |
NO990954L (no) | 1999-02-26 |
AU4157497A (en) | 1998-03-19 |
DK0923428T3 (da) | 2003-03-03 |
PL185308B1 (pl) | 2003-04-30 |
JP2000503606A (ja) | 2000-03-28 |
JP2004160657A (ja) | 2004-06-10 |
US5913994A (en) | 1999-06-22 |
CA2260096C (en) | 2003-06-03 |
ZA977369B (en) | 1998-02-19 |
KR20000029793A (ko) | 2000-05-25 |
EP0923428B1 (en) | 2002-10-30 |
US6609964B1 (en) | 2003-08-26 |
NO990954D0 (no) | 1999-02-26 |
JP3556675B2 (ja) | 2004-08-18 |
SK22299A3 (en) | 2000-03-13 |
DE69716751D1 (de) | 2002-12-05 |
BR9713183A (pt) | 1999-11-03 |
CN1228728A (zh) | 1999-09-15 |
WO1998008655A1 (en) | 1998-03-05 |
RU2162790C2 (ru) | 2001-02-10 |
CO4750687A1 (es) | 1999-03-31 |
CN1066379C (zh) | 2001-05-30 |
PL331758A1 (en) | 1999-08-02 |
EP0923428A1 (en) | 1999-06-23 |
KR100312672B1 (ko) | 2001-11-03 |
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