RU95121657A - Антикопировальная пленка - Google Patents

Антикопировальная пленка

Info

Publication number
RU95121657A
RU95121657A RU95121657/12A RU95121657A RU95121657A RU 95121657 A RU95121657 A RU 95121657A RU 95121657/12 A RU95121657/12 A RU 95121657/12A RU 95121657 A RU95121657 A RU 95121657A RU 95121657 A RU95121657 A RU 95121657A
Authority
RU
Russia
Prior art keywords
opaque
transparent layer
zones
transparent
printing
Prior art date
Application number
RU95121657/12A
Other languages
English (en)
Other versions
RU2101187C1 (ru
Inventor
Штайнингер Хельмут
De]
Хайльманн Петер
Хьюкин Питер
Gb]
Original Assignee
Басф Магнетикс ГмбХ (DE)
Басф Магнетикс ГмбХ
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 Басф Магнетикс ГмбХ (DE), Басф Магнетикс ГмбХ filed Critical Басф Магнетикс ГмбХ (DE)
Publication of RU95121657A publication Critical patent/RU95121657A/ru
Application granted granted Critical
Publication of RU2101187C1 publication Critical patent/RU2101187C1/ru

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/902—Anti-photocopy
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/913—Material designed to be responsive to temperature, light, moisture
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y10T428/24413—Metal or metal compound
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y10T428/24579—Parallel ribs and/or grooves with particulate matter
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y10T428/2462—Composite web or sheet with partial filling of valleys on outer surface
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Laminated Bodies (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

Объектом изобретения является антикопировальная пленка, состоящая по меньшей мере из одного слоя прозрачного материала с непрозрачными или отражающими зонами, размещенными примерно на равных расстояниях одна от другой, причем плоскости упомянутых зон расположены примерно параллельно одна другой и примерно в том же самом предопределенном положении относительно поверхностей прозрачного слоя по меньшей мере на одной из поверхностей прозрачного слоя с обеспечением по меньшей мере частичной прозрачности антикопировальной пленки под определенным углом взгляда на ее поверхность, причем отличительная особенность данной антикопировальной пленки заключается в том, что непрозрачные или отражающие зоны по меньшей мере частично образованы из экспонированного и в случае необходимости проявленного фоточувствительного материала, причем непрозрачные или отражающие зоны размещены вертикально или под углом к поверхности прозрачного слоя. Другим объектом изобретения является подобная антикопировальная пленка, в которой прозрачный слой и непрозрачные или отражающие зоны образованы из соэкструдированных прозрачной и непрозрачной или отражающей пластмасс.

Claims (1)

  1. Объектом изобретения является антикопировальная пленка, состоящая по меньшей мере из одного слоя прозрачного материала с непрозрачными или отражающими зонами, размещенными примерно на равных расстояниях одна от другой, причем плоскости упомянутых зон расположены примерно параллельно одна другой и примерно в том же самом предопределенном положении относительно поверхностей прозрачного слоя по меньшей мере на одной из поверхностей прозрачного слоя с обеспечением по меньшей мере частичной прозрачности антикопировальной пленки под определенным углом взгляда на ее поверхность, причем отличительная особенность данной антикопировальной пленки заключается в том, что непрозрачные или отражающие зоны по меньшей мере частично образованы из экспонированного и в случае необходимости проявленного фоточувствительного материала, причем непрозрачные или отражающие зоны размещены вертикально или под углом к поверхности прозрачного слоя. Другим объектом изобретения является подобная антикопировальная пленка, в которой прозрачный слой и непрозрачные или отражающие зоны образованы из соэкструдированных прозрачной и непрозрачной или отражающей пластмасс.
RU95121657A 1992-10-29 1993-10-16 Антикопировальная пленка RU2101187C1 (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4236563A DE4236563A1 (de) 1992-10-29 1992-10-29 Anti-Kopier-Film oder -Schicht
DEP4236563.5 1992-10-29
PCT/EP1993/002860 WO1994009990A1 (de) 1992-10-29 1993-10-16 Anti-kopier-film oder -schicht

Publications (2)

Publication Number Publication Date
RU95121657A true RU95121657A (ru) 1996-12-27
RU2101187C1 RU2101187C1 (ru) 1998-01-10

Family

ID=6471670

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95121657A RU2101187C1 (ru) 1992-10-29 1993-10-16 Антикопировальная пленка

Country Status (14)

Country Link
US (1) US5795643A (ru)
EP (1) EP0670786B1 (ru)
JP (1) JP3386076B2 (ru)
KR (1) KR100268157B1 (ru)
CN (1) CN1044349C (ru)
AT (1) ATE149121T1 (ru)
BR (1) BR9307341A (ru)
DE (2) DE4236563A1 (ru)
DK (1) DK0670786T3 (ru)
ES (1) ES2098789T3 (ru)
GR (1) GR3023340T3 (ru)
RU (1) RU2101187C1 (ru)
WO (1) WO1994009990A1 (ru)
ZA (1) ZA938043B (ru)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320219A1 (de) * 1993-06-18 1994-12-22 Basf Magnetics Gmbh Antikopierfilm
DE4321685A1 (de) * 1993-06-30 1995-03-23 Basf Magnetics Gmbh Antikopierfilm
US5591527A (en) * 1994-11-02 1997-01-07 Minnesota Mining And Manufacturing Company Optical security articles and methods for making same
DE69632863T2 (de) * 1995-08-01 2004-11-18 Boris Iliich Belousov Banddatenträger, verfahren und vorrichtung zum herstellen desselben
WO1999008161A1 (de) * 1997-08-12 1999-02-18 Emtec Matgnetics Gmbh Anti-kopierfilm für dokumente gegen kopieren derselben in einer kopiereinrichtung mit definiertem öffnungswinkel
DE19749789A1 (de) * 1997-11-11 1999-05-12 Bundesdruckerei Gmbh Sicherheitsmerkmal für ein Wert- oder Sicherheitsdokument mit fraktalem Lamellensystem
DE19932240B4 (de) * 1999-07-10 2005-09-01 Bundesdruckerei Gmbh Optisch variabel darstellbare/versteckbare Sicherheitselemente für Wert- und Sicherheitsdokumente
ES2174673B1 (es) * 1999-07-12 2003-08-01 Vijay Atawane Sistema de seguridad para evitar el fotocopiado de documentos.
US6692030B1 (en) * 2000-07-21 2004-02-17 Verify First Technologies, Inc. Security document with nano-pattern
US6398370B1 (en) 2000-11-15 2002-06-04 3M Innovative Properties Company Light control device
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification 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
CA2470547C (en) 2001-12-24 2008-05-20 Digimarc Id Systems, Llc Laser etched security features for identification documents and methods of making same
WO2003056507A1 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Systems, compositions, and methods for full color laser engraving of id documents
WO2003056500A1 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Covert variable information on id documents and methods of making same
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
WO2004049242A2 (en) 2002-11-26 2004-06-10 Digimarc Id Systems Systems and methods for managing and detecting fraud in image databases used with identification documents
US7763179B2 (en) 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
DE602004030434D1 (de) 2003-04-16 2011-01-20 L 1 Secure Credentialing Inc Dreidimensionale datenspeicherung
US7625613B2 (en) * 2003-10-15 2009-12-01 Verify First Technologies, Inc. Copy-resistant security paper
US7467873B2 (en) * 2005-10-14 2008-12-23 3M Innovative Properties Company Privacy film
US7326504B2 (en) * 2005-10-14 2008-02-05 3M Innovative Properties Company Imaged anti-copy film
ATE452764T1 (de) * 2006-08-11 2010-01-15 Nat Bank Of Belgium Verstecktes bild
ATE500069T1 (de) * 2008-01-31 2011-03-15 Nat Bank Of Belgium Farbumschaltung
US20100264163A1 (en) * 2008-11-13 2010-10-21 Tevs Nikolai R Product Dispensing Apparatus And Method
BR112012024369A2 (pt) 2010-03-25 2016-05-24 3M Innovative Properties Co matriz de extrusão e método de fabricação de uma camada composta
KR20130018778A (ko) * 2010-03-25 2013-02-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 복합 층
BR112012025122A2 (pt) * 2010-03-25 2016-06-21 3M Innovative Properties Co camada compósita
GB201117523D0 (en) 2011-10-11 2011-11-23 Rue De Int Ltd Security devices and methods of manufacture thereof
EP2888116B1 (de) * 2012-08-23 2016-09-21 Covestro Deutschland AG Sicherheits- und/oder wertdokument enthaltend ein visuell schaltbares fenster mit einem hologramm
DE102014010313A1 (de) * 2014-07-10 2016-01-14 Giesecke & Devrient Gmbh Folie und Datenträger
FR3040230B1 (fr) * 2015-08-18 2019-04-19 Ingenico Group Decoupeur papier pour imprimante integree a un dispositif electronique et dispositif electronique correspondant.
CN110023793B (zh) * 2016-12-01 2021-10-12 昕诺飞控股有限公司 用于生成光效果的光学元件
KR20220003407A (ko) * 2020-07-01 2022-01-10 엘지디스플레이 주식회사 시야각 제한 장치 및 이를 포함하는 디스플레이 장치
US12014232B2 (en) * 2022-10-07 2024-06-18 Capital One Services, Llc Transaction card with hidden visual features

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US4025673A (en) * 1972-04-13 1977-05-24 Reinnagel Richard E Method of forming copy resistant documents by forming an orderly array of fibers extending upward from a surface, coating the fibers and printing the coated fibers and the copy resistant document resulting from said method
US3887742A (en) * 1972-04-13 1975-06-03 Richard E Reinnagel Copy resistant documents
DE2540846A1 (de) * 1975-09-13 1977-03-17 Pelikan Werke Wagner Guenther Schutzueberzug fuer dokumente gegen kopieren
US4791449A (en) * 1986-05-30 1988-12-13 Xerox Corporation System for prevention of unauthorized copying
US5204160A (en) * 1988-08-08 1993-04-20 Minnesota Mining And Manufacturing Company Light-collimating film

Also Published As

Publication number Publication date
DE59305549D1 (de) 1997-04-03
DE4236563A1 (de) 1994-05-05
EP0670786A1 (de) 1995-09-13
DK0670786T3 (da) 1997-05-05
WO1994009990A1 (de) 1994-05-11
CN1087730A (zh) 1994-06-08
BR9307341A (pt) 1999-06-01
ATE149121T1 (de) 1997-03-15
KR100268157B1 (ko) 2000-10-16
RU2101187C1 (ru) 1998-01-10
CN1044349C (zh) 1999-07-28
JP3386076B2 (ja) 2003-03-10
JPH08505821A (ja) 1996-06-25
GR3023340T3 (en) 1997-08-29
ZA938043B (en) 1995-04-28
EP0670786B1 (de) 1997-02-26
ES2098789T3 (es) 1997-05-01
US5795643A (en) 1998-08-18

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