ES496693A0 - Un metodo de cortar piezas de patron a partir de material enlaminas - Google Patents

Un metodo de cortar piezas de patron a partir de material enlaminas

Info

Publication number
ES496693A0
ES496693A0 ES496693A ES496693A ES496693A0 ES 496693 A0 ES496693 A0 ES 496693A0 ES 496693 A ES496693 A ES 496693A ES 496693 A ES496693 A ES 496693A ES 496693 A0 ES496693 A0 ES 496693A0
Authority
ES
Spain
Prior art keywords
cutting pattern
plated material
pattern pieces
pieces
plated
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
ES496693A
Other languages
English (en)
Other versions
ES8201661A1 (es
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.)
Gerber Technology LLC
Original Assignee
Gerber Garment Technology 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
Application filed by Gerber Garment Technology Inc filed Critical Gerber Garment Technology Inc
Publication of ES8201661A1 publication Critical patent/ES8201661A1/es
Publication of ES496693A0 publication Critical patent/ES496693A0/es
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005Computer numerical control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38Cutting-out; Stamping-out
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14BMECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00Clicking, perforating, or cutting leather
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/182Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01Means for holding or positioning work
    • B26D7/018Holding the work by suction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38Cutting-out; Stamping-out
    • B26F2001/388Cutting-out; Stamping-out controlling the blade orientation along the cutting path
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/45Nc applications
    • G05B2219/45044Cutting
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/49Nc machine tool, till multiple
    • G05B2219/49157Limitation, collision, interference, forbidden zones, avoid obstacles
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/50Machine tool, machine tool null till machine tool work handling
    • G05B2219/50353Tool, probe inclination, orientation to surface, posture, attitude
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/50Machine tool, machine tool null till machine tool work handling
    • G05B2219/50357Tool tangential to path or surface
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0524Plural cutting steps
    • Y10T83/0572Plural cutting steps effect progressive cut
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0605Cut advances across work surface
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/162With control means responsive to replaceable or selectable information program
    • Y10T83/173Arithmetically determined program
    • Y10T83/175With condition sensor
    • Y10T83/178Responsive to work
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/687By tool reciprocable along elongated edge
    • Y10T83/6875With means permitting tool to be rotatably adjusted about its cutting edge during cutting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/687By tool reciprocable along elongated edge
    • Y10T83/6905With tool in-feed
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/828With illuminating or viewing means for work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Cutting Processes (AREA)
  • Advancing Webs (AREA)
  • Moulding By Coating Moulds (AREA)
ES496693A 1980-05-05 1980-11-10 Un metodo de cortar piezas de patron a partir de material enlaminas Granted ES496693A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/146,659 US4327615A (en) 1980-05-05 1980-05-05 Method and apparatus for cutting sheet material with preprocessed data

Publications (2)

Publication Number Publication Date
ES8201661A1 ES8201661A1 (es) 1981-12-16
ES496693A0 true ES496693A0 (es) 1981-12-16

Family

ID=22518389

Family Applications (2)

Application Number Title Priority Date Filing Date
ES494679A Granted ES494679A0 (es) 1980-05-05 1980-09-01 Perfeccionamientos en un aparato para cortar automaticamenteun material de lamina.
ES496693A Granted ES496693A0 (es) 1980-05-05 1980-11-10 Un metodo de cortar piezas de patron a partir de material enlaminas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES494679A Granted ES494679A0 (es) 1980-05-05 1980-09-01 Perfeccionamientos en un aparato para cortar automaticamenteun material de lamina.

Country Status (14)

Country Link
US (1) US4327615A (es)
JP (1) JPS6033638B2 (es)
AT (1) AT373927B (es)
CA (1) CA1147439A (es)
CH (1) CH650966A5 (es)
DE (1) DE3109228C2 (es)
ES (2) ES494679A0 (es)
FR (1) FR2481637A1 (es)
GB (2) GB2075714B (es)
HK (1) HK84087A (es)
IT (1) IT1193713B (es)
NO (1) NO153090C (es)
SE (1) SE442385B (es)
SG (1) SG40487G (es)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415978A (en) * 1981-04-14 1983-11-15 Molins Machine Company, Inc. Cut-to-mark cut-off control automated for splice and order change
US4448808A (en) * 1982-04-15 1984-05-15 Gerber Garment Technology, Inc. Method for preparing pattern piece
US4551810B1 (en) * 1982-07-28 1995-09-05 Technology Inc Const Method and apparatus for designing duct work for producing patterns for conduit sections in the designated duct work
US4554635B1 (en) * 1982-07-28 1995-10-03 Technology Inc Const Method and apparatus for marking or cutting laminar patterns or forms
US4628578A (en) * 1983-08-19 1986-12-16 Kabushiki Kaisha Komatsu Seisakusho Method and apparatus for automatic punching
US4611268A (en) * 1984-01-06 1986-09-09 Goetz Sandor Method and electronic apparatus for optimal arrangement of shapes having at least two dimensions
JPS6142661A (ja) * 1984-08-03 1986-03-01 Dainippon Screen Mfg Co Ltd 露光済フイルムの切断方法
FR2570315B1 (fr) * 1984-09-18 1988-06-10 Loriot Jean Marc Procede de reperage de la position et de la forme de gabarits disposes sur un materiau en plaque ou en feuille
US4781452A (en) * 1984-11-07 1988-11-01 Ace Ronald S Modular optical manufacturing system
US4656590A (en) * 1984-11-07 1987-04-07 Ronald Ace Method and apparatus for making patterns for eyeglasses
JPS6141366A (ja) * 1985-01-21 1986-02-27 ガ−バ−・サイエンテイフイツク・インコ−ポレ−テツド 布帛の欠陥処理装置
ES540057A0 (es) * 1985-02-01 1985-11-16 Investronica Sa Metodo de casado y corte de materiales laminares con dibujo
JPS61257709A (ja) * 1985-05-07 1986-11-15 Mitsubishi Electric Corp サイドトリミング設備の最適幅設定装置
ES8706339A1 (es) * 1985-05-22 1987-07-01 Investronica Sa Metodo y aparato de corte por util accionado ultrasonicamente.
JPS62123466A (ja) * 1985-11-22 1987-06-04 Kaneo Inoue 画像フイルム中の輪郭線描き切り方法
DE3544251A1 (de) * 1985-12-14 1987-06-19 Duerkopp System Technik Gmbh Verfahren und vorrichtung zum selbsttaetigen zuschneiden von teilen aus flaechigem naehgut nach mit unterschiedlichen konturen versehenen mustervorlagen auf einer koordinaten-schneidmaschine
US4794542A (en) * 1986-07-02 1988-12-27 Jules Prockter Sign generating apparatus with input of second sign information while cutting a first sign
DE3627110A1 (de) * 1986-08-06 1988-02-18 Duerkopp System Technik Gmbh Verfahren und vorrichtung zur optimierung eines materialzuschnittes
FR2610238A1 (fr) * 1987-02-04 1988-08-05 Sa Soc Procede de decoupe de fenetres ebiselees dans des materiaux en plaques et machine permettant de mettre en oeuvre un tel procede
JPS6427896A (en) * 1987-07-21 1989-01-30 Toppan Printing Co Ltd Sheet cutting device
US5074178A (en) * 1990-05-04 1991-12-24 Cad Futures Corporation Apparatus and method for cutting drawings from a web of sheet material
JPH0487797A (ja) * 1990-07-31 1992-03-19 Mimaki Eng:Kk カッテングプロッタ
US5088181A (en) * 1990-10-09 1992-02-18 The Boeing Company Sheet metal part machining system
US5216614A (en) * 1991-04-05 1993-06-01 Gerber Garment Technology, Inc. Apparatus and method for automatically cutting a length of sheet work material segment-by-segment
DE69226704T2 (de) * 1991-10-02 1999-06-02 Morrison Technology Ltd., Giffnock, Glasgow Vorrichtung zum schneiden von spitzen
JP2718612B2 (ja) * 1993-01-12 1998-02-25 日東電工株式会社 印字装置
JPH06269586A (ja) * 1993-03-17 1994-09-27 Mitsubishi Electric Corp 裁断機及びその被加工物ピックアップ方法
US5418711A (en) * 1993-09-21 1995-05-23 Gerber Garment Technology, Inc. Open loop control apparatus and associated method for cutting sheet material
HUT74049A (en) * 1994-04-23 1996-10-28 Stahl Method for treating of technical textile material and leather and apparatous thereof
DE4442411B4 (de) * 1994-11-29 2007-05-03 Heidelberger Druckmaschinen Ag Verfahren zur formenden Bearbeitung von Papier in einer Druckmaschine
JPH08313223A (ja) * 1995-05-16 1996-11-29 Ls Electro Galvanizing Co 移動ストリップを監視する方法と装置
DE59907070D1 (de) * 1998-03-12 2003-10-30 Mohr Adolf Maschf Verfahren zum Betreiben einer Schneidmaschine zum Schneiden von gestapeltem, blättrigem Gut
US6582166B1 (en) * 1999-10-22 2003-06-24 Gerber Scientific Products, Inc. Method of compensating for cutter deflection
US6810779B2 (en) * 2001-03-16 2004-11-02 Vitaly J. Feldman Critical area preprocessing of numeric control data for cutting sheet material
AU2003256962A1 (en) * 2002-07-29 2004-02-16 Gerber Technology, Inc. Method for scanning sheet-type work material and cutting pattern pieces therefrom
US7338400B2 (en) * 2003-08-14 2008-03-04 Johnson Controls Technology Company Motor belt tensioning construction for an air handling unit
US20050055919A1 (en) * 2003-08-14 2005-03-17 York International Corporation Panel construction for an air handling unit
US20050055918A1 (en) * 2003-08-14 2005-03-17 York International Corporation Roof panel construction for an air handling unit
US20050084324A1 (en) * 2003-08-14 2005-04-21 York International Corporation Corner cap member construction for an air handling unit
US7334377B2 (en) * 2003-08-14 2008-02-26 Johnson Controls Technology Company Raceway construction for an air handing unit
US20050055917A1 (en) * 2003-08-14 2005-03-17 York International Corporation Corner assembly construction for an air handling unit
US7128302B2 (en) * 2003-08-14 2006-10-31 York International Corporation Vibrationally isolated support construction for an air handling unit
US7043331B2 (en) * 2004-04-22 2006-05-09 Hallgrimur Sigtryggsson Method of manufacturing a plurality of wooden products
FR2896718B1 (fr) * 2006-01-27 2008-03-07 Airbus France Sas Procede de decoupe d'une panoplie de pieces
GB2451697A (en) * 2007-08-10 2009-02-11 Sigmala Ltd Adjustable slitting knife holder
US8683841B1 (en) 2009-01-20 2014-04-01 Walsh Atkinson Co., Inc. Apparatus and method to cut HVAC round and spiral ductwork and all attaching structures
JP5466857B2 (ja) * 2009-01-29 2014-04-09 株式会社島精機製作所 裁断データ編集装置および方法
CN102808313A (zh) * 2011-05-30 2012-12-05 上海和鹰机电科技股份有限公司 裁剪机的负压保持系统
USD744552S1 (en) * 2014-05-28 2015-12-01 Trumpf Gmbh + Co. Kg Sheet metal processing machine
USD745071S1 (en) * 2014-05-28 2015-12-08 Trumpf Gmbh + Co. Kg Sheet metal processing machine
USD745072S1 (en) * 2014-05-28 2015-12-08 Trumpf Gmbh + Co. Kg Sheet metal processing machine
JP2017007056A (ja) * 2015-06-24 2017-01-12 ブラザー工業株式会社 切断データ作成装置、切断データ作成方法、切断データ作成プログラム
NL2015103B1 (nl) * 2015-07-07 2017-01-31 Securo B V Inrichting en werkwijze voor het bewerken van een flexibel vel.
US10338564B2 (en) * 2015-11-10 2019-07-02 Gerber Technology Llc Remote material yield optimization for leather and other heterogeneous material
FR3061669B1 (fr) * 2017-01-09 2019-05-31 Lectra Procede de modification de la trajectoire de coupe de pieces destinees a etre decoupees dans un materiau souple
NL2019851B1 (en) * 2017-11-03 2019-05-13 Vmi Holland Bv Apparatus and method for converting a sheet into a continuous strip
FR3100475B1 (fr) * 2019-09-06 2021-08-06 Safran Nacelles Procédé et machine de découpe d’éléments de drapage

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US3495492A (en) * 1969-05-05 1970-02-17 Gerber Garment Technology Inc Apparatus for working on sheet material
GB1365188A (en) * 1971-09-23 1974-08-29 Gerber Garment Technology Inc Method for cutting sheet material and generating related conrol ler commands
US3803963A (en) * 1971-10-20 1974-04-16 Int Paper Co Cutter with stripper
US3803960A (en) * 1972-12-11 1974-04-16 Gerber Garment Technology Inc System and method for cutting pattern pieces from sheet material
US3887903A (en) * 1973-08-29 1975-06-03 Camsco Inc Interactive man-machine method and system for grading pattern pieces and for producing an apparel marker
US3848490A (en) * 1973-11-02 1974-11-19 Gerber Garment Technology Inc Method and apparatus for controlling a cutting tool
US4140037A (en) * 1977-04-22 1979-02-20 Gerber Garment Technology, Inc. Method of cutting sheet material with scheduled supplementation
US4133234A (en) * 1977-04-22 1979-01-09 Gerber Garment Technology, Inc. Method and apparatus for cutting sheet material with improved accuracy
US4133235A (en) * 1977-04-22 1979-01-09 Gerber Garment Technology, Inc. Closed loop apparatus for cutting sheet material
US4178820A (en) * 1977-04-22 1979-12-18 Gerber Garment Technology, Method and apparatus for cutting sheet material with improved accuracy

Also Published As

Publication number Publication date
AT373927B (de) 1984-03-12
SE8006518L (sv) 1981-11-06
NO153090B (no) 1985-10-07
CH650966A5 (de) 1985-08-30
GB2075714B (en) 1984-12-05
FR2481637B1 (es) 1983-09-09
GB2138595A (en) 1984-10-24
CA1147439A (en) 1983-05-31
JPS56157988A (en) 1981-12-05
NO153090C (no) 1986-01-15
GB8325473D0 (en) 1983-10-26
DE3109228A1 (de) 1981-12-24
ES8104037A1 (es) 1981-04-01
ES8201661A1 (es) 1981-12-16
JPS6033638B2 (ja) 1985-08-03
SE442385B (sv) 1985-12-23
GB2138595B (en) 1985-05-15
HK84087A (en) 1987-11-20
SG40487G (en) 1988-09-23
IT8068482A0 (it) 1980-09-25
US4327615A (en) 1982-05-04
ES494679A0 (es) 1981-04-01
FR2481637A1 (fr) 1981-11-06
DE3109228C2 (de) 1986-07-17
NO802468L (no) 1981-11-06
ATA89581A (de) 1983-07-15
IT1193713B (it) 1988-08-24
GB2075714A (en) 1981-11-18

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