EP0241182A3 - Einrichtung die anzeigt, dass ein Dokument kopiert wurde - Google Patents

Einrichtung die anzeigt, dass ein Dokument kopiert wurde Download PDF

Info

Publication number
EP0241182A3
EP0241182A3 EP87302601A EP87302601A EP0241182A3 EP 0241182 A3 EP0241182 A3 EP 0241182A3 EP 87302601 A EP87302601 A EP 87302601A EP 87302601 A EP87302601 A EP 87302601A EP 0241182 A3 EP0241182 A3 EP 0241182A3
Authority
EP
European Patent Office
Prior art keywords
sheet
substance
document
marking
formed material
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.)
Withdrawn
Application number
EP87302601A
Other languages
English (en)
French (fr)
Other versions
EP0241182A2 (de
Inventor
Niels A. Andersen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0241182A2 publication Critical patent/EP0241182A2/de
Publication of EP0241182A3 publication Critical patent/EP0241182A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Cleaning In Electrography (AREA)
  • Paper (AREA)
EP87302601A 1986-03-26 1987-03-25 Einrichtung die anzeigt, dass ein Dokument kopiert wurde Withdrawn EP0241182A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO861265A NO158550C (no) 1986-03-26 1986-03-26 Anvendelse av et stoff for paavisning av kopiering av dokumentet.
NO861265 1986-03-26

Publications (2)

Publication Number Publication Date
EP0241182A2 EP0241182A2 (de) 1987-10-14
EP0241182A3 true EP0241182A3 (de) 1989-06-14

Family

ID=19888841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87302601A Withdrawn EP0241182A3 (de) 1986-03-26 1987-03-25 Einrichtung die anzeigt, dass ein Dokument kopiert wurde

Country Status (2)

Country Link
EP (1) EP0241182A3 (de)
NO (1) NO158550C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620146B1 (fr) * 1987-09-03 1991-10-04 Arjomari Prioux Moyen, papier et document de securite contre la falsification par agent chimique et la contrefacon
GB2219525A (en) * 1988-06-08 1989-12-13 Bdk Ind Prod Ltd Adhesive packaging tape

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889799A (en) * 1955-01-20 1959-06-09 Korpman Ralf Temperature indicator
DE2048853B2 (de) * 1969-10-07 1977-09-15 Xerox Corp, Rochester, N.Y. (V.St.A.) Verfahren zur herstellung von nicht kopierbaren schriftstuecken

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889799A (en) * 1955-01-20 1959-06-09 Korpman Ralf Temperature indicator
DE2048853B2 (de) * 1969-10-07 1977-09-15 Xerox Corp, Rochester, N.Y. (V.St.A.) Verfahren zur herstellung von nicht kopierbaren schriftstuecken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN *

Also Published As

Publication number Publication date
EP0241182A2 (de) 1987-10-14
NO158550C (no) 1988-09-28
NO861265L (no) 1987-09-28
NO158550B (no) 1988-06-20

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