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DK461783D0 - PAPER TOPICS FOR COMPUTER LISTS - Google Patents

PAPER TOPICS FOR COMPUTER LISTS

Info

Publication number
DK461783D0
DK461783D0 DK4617/83A DK461783A DK461783D0 DK 461783 D0 DK461783 D0 DK 461783D0 DK 4617/83 A DK4617/83 A DK 4617/83A DK 461783 A DK461783 A DK 461783A DK 461783 D0 DK461783 D0 DK 461783D0
Authority
DK
Denmark
Prior art keywords
topics
paper
computer lists
lists
computer
Prior art date
Application number
DK4617/83A
Other languages
Danish (da)
Inventor
Allan Bartram
Gunnar Carlsen
Original Assignee
Purups Grafiske Hus A S
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 Purups Grafiske Hus A S filed Critical Purups Grafiske Hus A S
Priority to DK4617/83A priority Critical patent/DK461783D0/en
Publication of DK461783D0 publication Critical patent/DK461783D0/en
Priority to DE3424156A priority patent/DE3424156C2/en

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
    • B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
DK4617/83A 1983-10-07 1983-10-07 PAPER TOPICS FOR COMPUTER LISTS DK461783D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK4617/83A DK461783D0 (en) 1983-10-07 1983-10-07 PAPER TOPICS FOR COMPUTER LISTS
DE3424156A DE3424156C2 (en) 1983-10-07 1984-06-30 Paper with a grid print

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK4617/83A DK461783D0 (en) 1983-10-07 1983-10-07 PAPER TOPICS FOR COMPUTER LISTS

Publications (1)

Publication Number Publication Date
DK461783D0 true DK461783D0 (en) 1983-10-07

Family

ID=8135163

Family Applications (1)

Application Number Title Priority Date Filing Date
DK4617/83A DK461783D0 (en) 1983-10-07 1983-10-07 PAPER TOPICS FOR COMPUTER LISTS

Country Status (2)

Country Link
DE (1) DE3424156C2 (en)
DK (1) DK461783D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8704664D0 (en) * 1987-02-27 1987-04-01 Nocopi Int Inc Photocopy prevention technique
DE3921636C2 (en) * 1989-06-30 1998-07-09 Schwarz Druck Gmbh & Co Kg Print product protected against color copying
FR2729483B1 (en) * 1995-01-16 1997-04-11 Seyrat Alain SECURITY FUND FOR DOCUMENTS, DISTURBING ITS REPRODUCTION BY PHOTOCOPYING
US5954368A (en) * 1996-11-19 1999-09-21 The Standard Register Company Security document containing a non-orthogonal array
DE102008023001A1 (en) * 2008-05-09 2009-11-12 Herrmann Druck + Media Gmbh Paper with security imprint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168088A (en) * 1977-12-15 1979-09-18 Burroughs Corporation Protected document and method of making the same
US4175774A (en) * 1978-03-23 1979-11-27 American Standard Inc. Non-copying printed document and method of printing same

Also Published As

Publication number Publication date
DE3424156C2 (en) 1985-10-31
DE3424156A1 (en) 1985-04-25

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment