SE8303800L - Forfarande for att sekra enkla koder - Google Patents

Forfarande for att sekra enkla koder

Info

Publication number
SE8303800L
SE8303800L SE8303800A SE8303800A SE8303800L SE 8303800 L SE8303800 L SE 8303800L SE 8303800 A SE8303800 A SE 8303800A SE 8303800 A SE8303800 A SE 8303800A SE 8303800 L SE8303800 L SE 8303800L
Authority
SE
Sweden
Prior art keywords
code
line
codes
writing
lines
Prior art date
Application number
SE8303800A
Other languages
English (en)
Other versions
SE463897B (sv
SE8303800D0 (sv
Inventor
E Rothfjell
Original Assignee
Esselte Security Syst Ab
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 Esselte Security Syst Ab filed Critical Esselte Security Syst Ab
Priority to SE8303800A priority Critical patent/SE463897B/sv
Publication of SE8303800D0 publication Critical patent/SE8303800D0/sv
Priority to AT84850199T priority patent/ATE68277T1/de
Priority to EP84850199A priority patent/EP0130953B1/en
Priority to DE8484850199T priority patent/DE3485142D1/de
Priority to US06/625,467 priority patent/US4590366A/en
Publication of SE8303800L publication Critical patent/SE8303800L/sv
Publication of SE463897B publication Critical patent/SE463897B/sv

Links

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046Constructional details
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • 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
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00Printed matter
    • Y10S283/904Credit card

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Credit Cards Or The Like (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Error Detection And Correction (AREA)
SE8303800A 1983-07-01 1983-07-01 Foerfarande foer att saekra enkla koder SE463897B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8303800A SE463897B (sv) 1983-07-01 1983-07-01 Foerfarande foer att saekra enkla koder
AT84850199T ATE68277T1 (de) 1983-07-01 1984-06-20 Verfahren zur sicherung von einfachen koden.
EP84850199A EP0130953B1 (en) 1983-07-01 1984-06-20 Method of securing simple codes
DE8484850199T DE3485142D1 (de) 1983-07-01 1984-06-20 Verfahren zur sicherung von einfachen koden.
US06/625,467 US4590366A (en) 1983-07-01 1984-06-28 Method of securing simple codes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8303800A SE463897B (sv) 1983-07-01 1983-07-01 Foerfarande foer att saekra enkla koder

Publications (3)

Publication Number Publication Date
SE8303800D0 SE8303800D0 (sv) 1983-07-01
SE8303800L true SE8303800L (sv) 1985-01-02
SE463897B SE463897B (sv) 1991-02-04

Family

ID=20351868

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8303800A SE463897B (sv) 1983-07-01 1983-07-01 Foerfarande foer att saekra enkla koder

Country Status (5)

Country Link
US (1) US4590366A (sv)
EP (1) EP0130953B1 (sv)
AT (1) ATE68277T1 (sv)
DE (1) DE3485142D1 (sv)
SE (1) SE463897B (sv)

Families Citing this family (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175249A (en) * 1985-03-19 1986-11-26 Robert Arnold Bank/credit card fraud prevention system
US5367319A (en) * 1985-05-01 1994-11-22 Burlington Industries, Inc. Security protection for important documents and papers
GB2198390A (en) * 1986-02-05 1988-06-15 Michael Ivor Ogle The use of personal identification on cheques, cheque cards etc
US4904853A (en) * 1987-09-22 1990-02-27 Kabushiki Kaisha Astex Dual-function information-carrying sheet device
US4986868A (en) * 1988-08-31 1991-01-22 Wallace Computer Services, Inc. Method of making an intermediate blank for identification card or the like
CH683876A5 (de) * 1988-09-30 1994-05-31 Landis & Gyr Business Support In zwei Richtungen auslesbares Strichkodefeld.
US4889367A (en) * 1988-10-07 1989-12-26 Frito-Lay, Inc. Multi-readable information system
US4972476A (en) * 1989-05-11 1990-11-20 Nathans Robert L Counterfeit proof ID card having a scrambled facial image
GB8924111D0 (en) * 1989-10-26 1989-12-13 Amblehurst Ltd Optical device
US5337361C1 (en) * 1990-01-05 2001-05-15 Symbol Technologies Inc Record with encoded data
US5170044A (en) * 1990-11-09 1992-12-08 Pitney Bowes Inc. Error tolerant 3x3 bit-map coding of binary data and method of decoding
US5721788A (en) 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
US5751854A (en) * 1992-08-03 1998-05-12 Ricoh Company, Ltd. Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system
DE4345390C2 (de) * 1992-08-03 1998-06-10 Ricoh Kk Vorlagen-Unterscheidungssystem zum Unterscheiden eines speziellen Dokumentes, Bilderzeugungs- und Bildverarbeitungseinrichtung sowie Kopiergerät
DE4393748T1 (de) 1992-08-03 1994-10-20 Ricoh Kk Vorlagen-Unterscheidungssystem zum Unterscheiden eines speziellen Dokumentes, Bilderzeugungs- und Bildverarbeitungseinrichtung sowie Kopiergerät
US20020009208A1 (en) * 1995-08-09 2002-01-24 Adnan Alattar Authentication of physical and electronic media objects using digital watermarks
US6580819B1 (en) 1993-11-18 2003-06-17 Digimarc Corporation Methods of producing security documents having digitally encoded data and documents employing same
US7044395B1 (en) 1993-11-18 2006-05-16 Digimarc Corporation Embedding and reading imperceptible codes on objects
US6424725B1 (en) 1996-05-16 2002-07-23 Digimarc Corporation Determining transformations of media signals with embedded code signals
US7171016B1 (en) * 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US5841978A (en) * 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US6122403A (en) * 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US6611607B1 (en) * 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
USRE40919E1 (en) * 1993-11-18 2009-09-22 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US6983051B1 (en) 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US5832119C1 (en) * 1993-11-18 2002-03-05 Digimarc Corp Methods for controlling systems using control signals embedded in empirical data
US5748783A (en) * 1995-05-08 1998-05-05 Digimarc Corporation Method and apparatus for robust information coding
US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US7313251B2 (en) 1993-11-18 2007-12-25 Digimarc Corporation Method and system for managing and controlling electronic media
US5636292C1 (en) * 1995-05-08 2002-06-18 Digimarc Corp Steganography methods employing embedded calibration data
US7515733B2 (en) * 1993-11-18 2009-04-07 Digimarc Corporation Methods and arrangements employing digital content items
DE69432480T2 (de) * 1993-11-18 2004-03-18 Digimarc Corp., Tualatin Identifikations/beglaubigungskodierungsverfahren und -vorrichtung
US6408082B1 (en) 1996-04-25 2002-06-18 Digimarc Corporation Watermark detection using a fourier mellin transform
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US5841886A (en) * 1993-11-18 1998-11-24 Digimarc Corporation Security system for photographic identification
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US6516079B1 (en) 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US5862260A (en) * 1993-11-18 1999-01-19 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US6546112B1 (en) * 1993-11-18 2003-04-08 Digimarc Corporation Security document with steganographically-encoded authentication data
US7039214B2 (en) * 1999-11-05 2006-05-02 Digimarc Corporation Embedding watermark components during separate printing stages
US6968057B2 (en) * 1994-03-17 2005-11-22 Digimarc Corporation Emulsion products and imagery employing steganography
US6869023B2 (en) * 2002-02-12 2005-03-22 Digimarc Corporation Linking documents through digital watermarking
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US6882738B2 (en) * 1994-03-17 2005-04-19 Digimarc Corporation Methods and tangible objects employing textured machine readable data
US6535618B1 (en) 1994-10-21 2003-03-18 Digimarc Corporation Image capture device with steganographic data embedding
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US7555139B2 (en) * 1995-05-08 2009-06-30 Digimarc Corporation Secure documents with hidden signals, and related methods and systems
US6721440B2 (en) 1995-05-08 2004-04-13 Digimarc Corporation Low visibility watermarks using an out-of-phase color
US20090097695A9 (en) * 1995-05-08 2009-04-16 Rhoads Geoffrey B Personal document authentication system using watermarking
US6744906B2 (en) 1995-05-08 2004-06-01 Digimarc Corporation Methods and systems using multiple watermarks
US7486799B2 (en) * 1995-05-08 2009-02-03 Digimarc Corporation Methods for monitoring audio and images on the internet
US6760463B2 (en) 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
US7620200B2 (en) * 1995-05-08 2009-11-17 Digimarc Corporation Authentication of identification documents
US7006661B2 (en) * 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US6788800B1 (en) 2000-07-25 2004-09-07 Digimarc Corporation Authenticating objects using embedded data
US6408331B1 (en) * 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US6411725B1 (en) 1995-07-27 2002-06-25 Digimarc Corporation Watermark enabled video objects
US6829368B2 (en) 2000-01-26 2004-12-07 Digimarc Corporation Establishing and interacting with on-line media collections using identifiers in media signals
US6965682B1 (en) 1999-05-19 2005-11-15 Digimarc Corp Data transmission by watermark proxy
US7770013B2 (en) * 1995-07-27 2010-08-03 Digimarc Corporation Digital authentication with digital and analog documents
US6577746B1 (en) 1999-12-28 2003-06-10 Digimarc Corporation Watermark-based object linking and embedding
US6747692B2 (en) 1997-03-28 2004-06-08 Symbol Technologies, Inc. Portable multipurpose recording terminal and portable network server
US6381341B1 (en) 1996-05-16 2002-04-30 Digimarc Corporation Watermark encoding method exploiting biases inherent in original signal
FR2762425B1 (fr) * 1997-04-18 1999-06-04 Chevillot Sa Procede de marquage infalsifiable, indelebile et contraste d'objets et notamment etiquettes
US6850626B2 (en) 1998-01-20 2005-02-01 Digimarc Corporation Methods employing multiple watermarks
US6608911B2 (en) 2000-12-21 2003-08-19 Digimarc Corporation Digitally watermaking holograms for use with smart cards
US6978036B2 (en) * 1998-07-31 2005-12-20 Digimarc Corporation Tamper-resistant authentication techniques for identification documents
ATE289435T1 (de) * 1998-11-19 2005-03-15 Digimarc Corp Druck und überprüfung von selbstprüfenden sicherheitsdokumenten
US6625297B1 (en) 2000-02-10 2003-09-23 Digimarc Corporation Self-orienting watermarks
WO2001080169A1 (en) * 2000-04-17 2001-10-25 Digimarc Corporation Authentication of physical and electronic media objects using digital watermarks
US6912295B2 (en) * 2000-04-19 2005-06-28 Digimarc Corporation Enhancing embedding of out-of-phase signals
US7027614B2 (en) 2000-04-19 2006-04-11 Digimarc Corporation Hiding information to reduce or offset perceptible artifacts
US6804377B2 (en) 2000-04-19 2004-10-12 Digimarc Corporation Detecting information hidden out-of-phase in color channels
US7305104B2 (en) * 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
US7111168B2 (en) * 2000-05-01 2006-09-19 Digimarc Corporation Digital watermarking systems
US7346184B1 (en) 2000-05-02 2008-03-18 Digimarc Corporation Processing methods combining multiple frames of image data
US8103877B2 (en) 2000-12-21 2012-01-24 Digimarc Corporation Content identification and electronic tickets, coupons and credits
US6965683B2 (en) * 2000-12-21 2005-11-15 Digimarc Corporation Routing networks for use with watermark systems
US7958359B2 (en) * 2001-04-30 2011-06-07 Digimarc Corporation Access control systems
US8543823B2 (en) 2001-04-30 2013-09-24 Digimarc Corporation Digital watermarking for identification documents
US7502937B2 (en) * 2001-04-30 2009-03-10 Digimarc Corporation Digital watermarking security systems
ATE367594T1 (de) * 2001-11-09 2007-08-15 Int Barcode Corp System und verfahren zum einbetten von zeichen in einen strich eines strichcodes
US7207491B2 (en) * 2001-11-09 2007-04-24 International Barcode Corporation System and method for generating a combined bar code image
JP2005512371A (ja) * 2001-11-30 2005-04-28 インターナショナル バーコード コーポレイション デジタル画像及び対応するデータを確認するシステム及び方法
US7322514B2 (en) * 2001-11-30 2008-01-29 International Barcode Corporation Method for identifying and authenticating goods using codes, barcodes and radio frequency identification
WO2003052680A1 (en) 2001-12-18 2003-06-26 Digimarc Id System, Llc Multiple image security features for identification documents and methods of making same
ATE552120T1 (de) 2001-12-24 2012-04-15 L 1 Secure Credentialing Inc Verdeckte variableninformationen auf id- dokumenten und verfahren zu ihrer herstellung
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
CA2470547C (en) 2001-12-24 2008-05-20 Digimarc Id Systems, Llc Laser etched security features for identification documents and methods of making same
CA2470600C (en) 2001-12-24 2009-12-22 Digimarc Id Systems, Llc Systems, compositions, and methods for full color laser engraving of id documents
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7152786B2 (en) 2002-02-12 2006-12-26 Digimarc Corporation Identification document including embedded data
WO2003088144A2 (en) 2002-04-09 2003-10-23 Digimarc Id Systems, Llc Image processing techniques for printing identification cards and documents
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US7974495B2 (en) * 2002-06-10 2011-07-05 Digimarc Corporation Identification and protection of video
US7028902B2 (en) * 2002-10-03 2006-04-18 Hewlett-Packard Development Company, L.P. Barcode having enhanced visual quality and systems and methods thereof
MXPA05003984A (es) * 2002-10-15 2005-06-22 Digimarc Corp Documento de identificacion y metodos relacionados.
AU2003298731A1 (en) 2002-11-26 2004-06-18 Digimarc Id Systems Systems and methods for managing and detecting fraud in image databases used with identification documents
US7712673B2 (en) 2002-12-18 2010-05-11 L-L Secure Credentialing, Inc. Identification document with three dimensional image of bearer
DE602004030434D1 (de) 2003-04-16 2011-01-20 L 1 Secure Credentialing Inc Dreidimensionale datenspeicherung
CN101271539A (zh) * 2003-12-08 2008-09-24 国际条形码公司 使用代码、条形码及射频标识别来识别及鉴别商品的方法
JP4981455B2 (ja) * 2004-02-04 2012-07-18 ディジマーク コーポレイション オンチップでの電子透かしの入ったイメージ信号及び電子透かしを通じた写真によるトラベルログ
US7744002B2 (en) 2004-03-11 2010-06-29 L-1 Secure Credentialing, Inc. Tamper evident adhesive and identification document including same
US20070204162A1 (en) * 2006-02-24 2007-08-30 Rodriguez Tony F Safeguarding private information through digital watermarking
US7900847B2 (en) * 2007-01-18 2011-03-08 Target Brands, Inc. Barcodes with graphical elements
FR3035253B1 (fr) * 2015-04-17 2020-12-04 Oberthur Technologies Procede de verification d'un dispositif de securite comportant une signature
PL3459757T3 (pl) * 2017-09-26 2022-01-03 Thales Dis France Sa Sposób generowania zmiennych wzorów giloszowanych, urządzenia do jego realizacji oraz dokument tożsamości zawierający takie wzory

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2905441C3 (de) * 1979-02-13 1981-05-14 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Verfahren zur Herstellung von Wertpapier mit gedruckten Echtheitskennzeichen in einer Papierschicht
DE2907809B2 (de) * 1979-02-28 1981-01-15 Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen Ausweiskarte und Verfahren zu ihrer Herstellung
US4423415A (en) * 1980-06-23 1983-12-27 Light Signatures, Inc. Non-counterfeitable document system

Also Published As

Publication number Publication date
EP0130953A3 (en) 1988-07-27
SE463897B (sv) 1991-02-04
SE8303800D0 (sv) 1983-07-01
DE3485142D1 (de) 1991-11-14
US4590366A (en) 1986-05-20
EP0130953B1 (en) 1991-10-09
ATE68277T1 (de) 1991-10-15
EP0130953A2 (en) 1985-01-09

Similar Documents

Publication Publication Date Title
SE8303800L (sv) Forfarande for att sekra enkla koder
DE68908850D1 (de) Verfahren und Vorrichtung für die Elektrolyse von Wasser.
DE68918975D1 (de) Verfahren für die Herstellung von Leiterplatten.
DE3581377D1 (de) Vorrichtung zum erzeugen von reinem wasser.
EP0255118A3 (en) Pattern generator
DE69004752D1 (de) Vorrichtung für die kontinuierliche Erzeugung von elektrolysiertem Wasser.
DE3789487D1 (de) Vorrichtung zur Erzeugung von Elektronenstrahlen.
KR920001708A (ko) 반도체 집적회로
ES8204908A1 (es) Disposicion de, al menos, dos tarjetas de circuitos impresos.
DE69020187D1 (de) Anordnung zur Erzeugung von Matrix-Zeichenmustern.
DE3575481D1 (de) Verfahren zum positionieren von druckformen vor dem stanzen von registerlochungen sowie anordnung zum durchfuehren des verfahrens.
DE3579192D1 (de) Katalysator und verfahren zum erzeugen von wasserstoff aus kohlenmonoxyd und wasser.
JPS5430044A (en) Information output system
ATE93306T1 (de) Tragbare elektrische vorrichtung zur dampferzeugung, insbesondere zum entfernen von wandbekleidung.
JPS5222426A (en) Method of installing interface circuit section
DE69022101T2 (de) Vorrichtung zum Aufsuchen von Störungen bei der Herstellung von phototechnisch realisierten Überzügen auf Leiterplatten.
JPS5341136A (en) Pattern reading system
ATE26030T1 (de) Verfahren und schaltungsanordnung zur segmentierung von zeichen aus einer seriell gelesenen zeichenfolge.
JPS53110334A (en) Patern correction system
DE3580978D1 (de) Verfahren zur herstellung von resistmustern.
SU556870A1 (ru) Штамп дл зенковки отверстий в листовых детал х
JPS5248931A (en) Character generation system
JPS6480884A (en) Scan path constituting method
JPS51124323A (en) Code board
JPS5369541A (en) Graphic recognizing equipment

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8303800-0

Effective date: 19930204

Format of ref document f/p: F