DE68925989D1 - Träger für Stereolithographie - Google Patents

Träger für Stereolithographie

Info

Publication number
DE68925989D1
DE68925989D1 DE68925989T DE68925989T DE68925989D1 DE 68925989 D1 DE68925989 D1 DE 68925989D1 DE 68925989 T DE68925989 T DE 68925989T DE 68925989 T DE68925989 T DE 68925989T DE 68925989 D1 DE68925989 D1 DE 68925989D1
Authority
DE
Germany
Prior art keywords
supports
fluid medium
successive adjacent
cross
dimensional object
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
Application number
DE68925989T
Other languages
English (en)
Other versions
DE68925989T2 (de
Inventor
Charles William Hull
Charles William Van Lewis
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.)
3D Systems Inc
Original Assignee
3D Systems Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26878432&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68925989(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/182,801 external-priority patent/US4999143A/en
Application filed by 3D Systems Inc filed Critical 3D Systems Inc
Application granted granted Critical
Publication of DE68925989D1 publication Critical patent/DE68925989D1/de
Publication of DE68925989T2 publication Critical patent/DE68925989T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/12—Spreading-out the material on a substrate, e.g. on the surface of a liquid
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0037—Production of three-dimensional images
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/70416—2.5D lithography
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49013—Deposit layers, cured by scanning laser, stereo lithography SLA, prototyping
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49015—Wire, strang laying, deposit fluid, welding, adhesive, hardening, solidification, fuse
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49039—Build layer of different, weaker material between support and prototype
DE68925989T 1988-04-18 1989-04-17 Träger für Stereolithographie Expired - Lifetime DE68925989T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/182,801 US4999143A (en) 1988-04-18 1988-04-18 Methods and apparatus for production of three-dimensional objects by stereolithography
US26980188A 1988-11-08 1988-11-08

Publications (2)

Publication Number Publication Date
DE68925989D1 true DE68925989D1 (de) 1996-04-25
DE68925989T2 DE68925989T2 (de) 1996-12-05

Family

ID=26878432

Family Applications (3)

Application Number Title Priority Date Filing Date
DE0338751T Pending DE338751T1 (de) 1988-04-18 1989-04-17 Träger für Stereolithographie.
DE68929352T Expired - Lifetime DE68929352T2 (de) 1988-04-18 1989-04-17 Stereolithografische Stützen
DE68925989T Expired - Lifetime DE68925989T2 (de) 1988-04-18 1989-04-17 Träger für Stereolithographie

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE0338751T Pending DE338751T1 (de) 1988-04-18 1989-04-17 Träger für Stereolithographie.
DE68929352T Expired - Lifetime DE68929352T2 (de) 1988-04-18 1989-04-17 Stereolithografische Stützen

Country Status (8)

Country Link
EP (2) EP0338751B1 (de)
JP (1) JP3004302B2 (de)
KR (1) KR100257135B1 (de)
AT (2) ATE209562T1 (de)
DE (3) DE338751T1 (de)
HK (2) HK1001674A1 (de)
IL (1) IL89978A0 (de)
WO (1) WO1989010254A1 (de)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5089184A (en) * 1989-01-18 1992-02-18 Mitsui Engineering And Shipbuilding Co., Ltd. Optical molding method
JPH02251419A (ja) * 1989-03-27 1990-10-09 Sony Corp 立体形状形成方法
US5009585A (en) * 1989-12-18 1991-04-23 Mitsui Engineering & Shipbuilding Co., Ltd. Optical molding apparatus and movable base device therefor
JPH0773884B2 (ja) * 1990-05-02 1995-08-09 三菱商事株式会社 光固化造形装置
US5474719A (en) * 1991-02-14 1995-12-12 E. I. Du Pont De Nemours And Company Method for forming solid objects utilizing viscosity reducible compositions
DE4125534A1 (de) * 1991-08-01 1993-02-18 Eos Electro Optical Syst Verfahren und vorrichtung zum herstellen eines objekts mittels stereograhpie
DE4309524C2 (de) * 1993-03-24 1998-05-20 Eos Electro Optical Syst Verfahren zum Herstellen eines dreidimensionalen Objekts
BE1008128A3 (nl) * 1994-03-10 1996-01-23 Materialise Nv Werkwijze voor het ondersteunen van een voorwerp vervaardigd door stereolithografie of een andere snelle prototypevervaardigingswerkwijze en voor het vervaardigen van de daarbij gebruikte steunkonstruktie.
DE4436695C1 (de) * 1994-10-13 1995-12-21 Eos Electro Optical Syst Verfahren zum Herstellen eines dreidimensionalen Objektes
DE19954891A1 (de) * 1999-11-15 2001-05-17 Matthias Fockele Verfahren zur Herstellung eines Formkörpers
US6558606B1 (en) 2000-01-28 2003-05-06 3D Systems, Inc. Stereolithographic process of making a three-dimensional object
US6712856B1 (en) 2000-03-17 2004-03-30 Kinamed, Inc. Custom replacement device for resurfacing a femur and method of making the same
GB2375988B (en) * 2001-05-03 2004-05-26 Peter David Hurley 3-D bust maker
DE10219983B4 (de) 2002-05-03 2004-03-18 Bego Medical Ag Verfahren zum Herstellen von Produkten durch Freiform-Lasersintern
US7435072B2 (en) 2003-06-02 2008-10-14 Hewlett-Packard Development Company, L.P. Methods and systems for producing an object through solid freeform fabrication
DE102004032559B4 (de) * 2004-07-06 2006-06-01 Dr.Ing.H.C. F. Porsche Ag Verfahren zum Fixieren und Herstellen von Bauteilen, insbesondere von Fahrzeugbauteilen
US7997891B2 (en) * 2007-04-12 2011-08-16 Purdue Research Foundation Molding processes and tool therefor
GB0715621D0 (en) 2007-08-10 2007-09-19 Rolls Royce Plc Support architecture
US9789540B2 (en) 2008-02-13 2017-10-17 Materials Solutions Limited Method of forming an article
GB2458745B (en) * 2008-02-13 2013-03-20 Materials Solutions A method of forming an article
EP2271475A2 (de) * 2008-03-27 2011-01-12 Iterations, Inc. Vorrichtung zum bilden dreidimensionaler variablen und verwendungsverfahren dafür
RU2555281C2 (ru) 2008-12-22 2015-07-10 Недерландсе Органисати Вор Тугепаст-Натюрветенсхаппелейк Ондерзук Тно Способ и аппарат для послойного изготовления объемного объекта
US8877115B2 (en) 2010-08-20 2014-11-04 Xydex Pty Ltd Apparatus and method for making an object
IT1403482B1 (it) * 2011-01-18 2013-10-17 Dws Srl Metodo per la produzione di un oggetto tridimensionale e macchina stereolitografica impiegante tale metodo
US20140093690A1 (en) * 2011-05-31 2014-04-03 Nanoptics, Incorporated Method and apparatus for lithographic manufacture of multi-component polymeric fiber plates
US9136794B2 (en) 2011-06-22 2015-09-15 Research Triangle Institute, International Bipolar microelectronic device
US20140303942A1 (en) 2013-04-05 2014-10-09 Formlabs, Inc. Additive fabrication support structures
DE102013218760A1 (de) * 2013-09-19 2015-03-19 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum schichtweisen Herstellen eines Bauteils
DE112014006198T5 (de) 2014-01-16 2016-10-27 Hewlett-Packard Development Company, L.P. Erzeugen eines dreidimensionalen Gegenstandes
WO2015106836A1 (en) * 2014-01-16 2015-07-23 Hewlett-Packard Development Company, L.P. Processing three-dimensional object data of an object to be generated by an additive manufacturing process
US10452038B2 (en) 2014-01-16 2019-10-22 Hewlett-Packard Development Company, L.P. Build material profile
CN105939837B (zh) * 2014-01-16 2019-05-10 惠普发展公司，有限责任合伙企业 对用于增材制造系统的切片数据进行处理
CN105916661B (zh) 2014-01-16 2019-09-10 惠普发展公司，有限责任合伙企业 生成三维对象
US10220564B2 (en) 2014-01-16 2019-03-05 Hewlett-Packard Development Company, L.P. Generating three-dimensional objects
TWI629162B (zh) * 2014-03-25 2018-07-11 Ｄｗｓ有限責任公司 一種電腦實施方法、設備、及電腦程式製品，用於界定一藉由光固化製造的三度空間物體的支撐結構
US10558200B2 (en) 2014-04-30 2020-02-11 Hewlett-Packard Development Company, L.P. Processing object data
JP6720092B2 (ja) 2014-06-23 2020-07-08 カーボン，インコーポレイテッド 多様な硬化機構を有する材料からのポリウレタン三次元物体製造方法
CN104118120B (zh) * 2014-07-10 2016-09-14 广州中国科学院先进技术研究所 一种用于3d打印的光学系统及其控制方法
DE102014010412B4 (de) 2014-07-14 2021-08-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Anordnung zur generativen Fertigung von Bauteilen
CN104482882A (zh) * 2014-12-22 2015-04-01 河海大学 一种漫顶溃坝试验中的溃口测量仪及测量方法
US10612112B2 (en) 2015-04-09 2020-04-07 Electronics And Telecommunications Research Institute Noble metal material for 3-dimensional printing, method for manufacturing the same, and method for 3-dimensional printing using the same
US10563292B2 (en) 2015-04-09 2020-02-18 Electronics And Telecommunications Research Institute Metal material for 3-dimensional printing, method for manufacturing the same, and method for 3-dimensional printing using the same
WO2016198291A1 (en) 2015-06-09 2016-12-15 Politecnico Di Milano A device for direct additive manufacturing by means of extrusion of metal powders and ceramic materials on a parallel kinematic table
EP3368227B1 (de) 2015-10-30 2021-12-08 Seurat Technologies, Inc. System und verfahren zur generativen fertigung
CN107053651B (zh) * 2016-02-05 2019-07-12 三纬国际立体列印科技股份有限公司 三维模型打印切层方法
CN107042629A (zh) * 2016-02-05 2017-08-15 新会江裕信息产业有限公司 立体打印方法
US10799951B2 (en) * 2016-02-11 2020-10-13 General Electric Company Method and conformal supports for additive manufacturing
US10583647B2 (en) 2017-05-17 2020-03-10 Ford Motor Company Method of controlling warping in 3D printing
WO2019111204A1 (en) 2017-12-08 2019-06-13 3M Innovative Properties Company Method and apparatus for 3d-printing gels
WO2020008789A1 (ja) * 2018-07-05 2020-01-09 三井化学株式会社 三次元造形装置、制御装置、および造形物の製造方法
CN109465445B (zh) * 2018-11-12 2020-12-01 成都飞机工业（集团）有限责任公司 一种基于铝基复合材料的弱化3d打印件残余应力的方法
CN110142965B (zh) * 2019-05-17 2021-07-27 珠海赛纳三维科技有限公司 伺服电机驱动电路及3d打印装置
KR102117592B1 (ko) * 2019-08-13 2020-06-02 원광이엔텍 주식회사 3차원 프린터용 모델링 파일 통합 처리 장치 및 방법
CN110802837A (zh) * 2019-10-31 2020-02-18 共享智能装备有限公司 Fdm打印产品支撑结构及打印方法
KR102338498B1 (ko) * 2020-11-25 2021-12-13 한국전자기술연구원 3d 프린팅 출력 안정성을 위한 보조 서포트 생성 방법
CN112873838B (zh) * 2021-02-02 2022-04-05 中山大学 一种生物墨水打印条件筛选平台及筛选方法
US20230256667A1 (en) * 2022-02-11 2023-08-17 NEXA3D Inc. Compliant support structure for substratum used in photopolymerization vat

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775758A (en) * 1951-05-25 1956-12-25 Munz Otto John Photo-glyph recording
US4238840A (en) 1967-07-12 1980-12-09 Formigraphic Engine Corporation Method, medium and apparatus for producing three dimensional figure product
US4041476A (en) 1971-07-23 1977-08-09 Wyn Kelly Swainson Method, medium and apparatus for producing three-dimensional figure product
US4078229A (en) 1975-01-27 1978-03-07 Swanson Wyn K Three dimensional systems
US4288861A (en) 1977-12-01 1981-09-08 Formigraphic Engine Corporation Three-dimensional systems
JPS60247515A (ja) * 1984-05-23 1985-12-07 Oosakafu 光学的造形法
US4575330A (en) * 1984-08-08 1986-03-11 Uvp, Inc. Apparatus for production of three-dimensional objects by stereolithography
ES2063737T3 (es) * 1986-06-03 1995-01-16 Cubital Ltd Aparato y metodo para modelizacion tridimensional.
JPH02251419A (ja) * 1989-03-27 1990-10-09 Sony Corp 立体形状形成方法

Also Published As

Publication number Publication date
KR100257135B1 (ko) 2000-06-01
ATE209562T1 (de) 2001-12-15
JP3004302B2 (ja) 2000-01-31
HK1006793A1 (en) 1999-03-19
ATE135622T1 (de) 1996-04-15
IL89978A0 (en) 1989-12-15
HK1001674A1 (en) 2003-07-10
DE68929352D1 (de) 2002-01-10
DE68925989T2 (de) 1996-12-05
DE338751T1 (de) 1996-01-04
EP0338751B1 (de) 1996-03-20
EP0686480A3 (de) 1996-11-20
EP0686480B1 (de) 2001-11-28
DE68929352T2 (de) 2002-09-19
WO1989010254A1 (en) 1989-11-02
JPH04506778A (ja) 1992-11-26
EP0338751A3 (de) 1991-10-09
EP0338751A2 (de) 1989-10-25
KR900700273A (ko) 1990-08-13
EP0686480A2 (de) 1995-12-13

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8327 Change in the person/name/address of the patent owner

Owner name: 3D SYSTEMS, INC., ROCK HILL, S.C., US