FI79671C - Dokument, foerfarande foer foerhindrande av ljuskopiering av dokument och foer ljuskopiering otillaempligt papper. - Google Patents

Dokument, foerfarande foer foerhindrande av ljuskopiering av dokument och foer ljuskopiering otillaempligt papper. Download PDF

Info

Publication number
FI79671C
FI79671C FI831891A FI831891A FI79671C FI 79671 C FI79671 C FI 79671C FI 831891 A FI831891 A FI 831891A FI 831891 A FI831891 A FI 831891A FI 79671 C FI79671 C FI 79671C
Authority
FI
Finland
Prior art keywords
document
nanometers
wavelength
spectral response
light
Prior art date
Application number
FI831891A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI831891L (fi
FI79671B (fi
FI831891A0 (fi
Inventor
Norman A Gardner
Michael P Voticky
Original Assignee
Norman A Gardner
Michael P Voticky
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
Priority claimed from US06/475,791 external-priority patent/US4632429A/en
Application filed by Norman A Gardner, Michael P Voticky filed Critical Norman A Gardner
Publication of FI831891A0 publication Critical patent/FI831891A0/fi
Publication of FI831891L publication Critical patent/FI831891L/fi
Priority to FI884161A priority Critical patent/FI80638C/fi
Publication of FI79671B publication Critical patent/FI79671B/fi
Application granted granted Critical
Publication of FI79671C publication Critical patent/FI79671C/fi

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
    • 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

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Paper (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Cleaning In Electrography (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Saccharide Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
FI831891A 1983-03-16 1983-05-26 Dokument, foerfarande foer foerhindrande av ljuskopiering av dokument och foer ljuskopiering otillaempligt papper. FI79671C (fi)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI884161A FI80638C (fi) 1983-03-16 1988-09-09 Dokument, foerfarande foer foerhindrande av fotokopiering av dokumentet och foer fotokopiering olaempligt papper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47579183 1983-03-16
US06/475,791 US4632429A (en) 1981-05-25 1983-03-16 Method of rendering documents resistant to photocopying and anti-copying paper therefor

Publications (4)

Publication Number Publication Date
FI831891A0 FI831891A0 (fi) 1983-05-26
FI831891L FI831891L (fi) 1984-09-17
FI79671B FI79671B (fi) 1989-10-31
FI79671C true FI79671C (fi) 1990-02-12

Family

ID=23889168

Family Applications (1)

Application Number Title Priority Date Filing Date
FI831891A FI79671C (fi) 1983-03-16 1983-05-26 Dokument, foerfarande foer foerhindrande av ljuskopiering av dokument och foer ljuskopiering otillaempligt papper.

Country Status (12)

Country Link
EP (1) EP0119344B1 (no)
JP (1) JPS59174870A (no)
AT (1) ATE32274T1 (no)
AU (1) AU560208B2 (no)
CA (1) CA1214805A (no)
DE (1) DE3375527D1 (no)
DK (1) DK243283A (no)
FI (1) FI79671C (no)
HK (1) HK98688A (no)
NO (1) NO171099C (no)
NZ (1) NZ205794A (no)
ZA (1) ZA833659B (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4951163B2 (ja) * 2008-07-03 2012-06-13 美津濃株式会社 スポーツ手袋

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852088A (en) * 1972-03-20 1974-12-03 Ibm Security document system and method
US3887742A (en) * 1972-04-13 1975-06-03 Richard E Reinnagel Copy resistant documents
FR2247067A5 (en) * 1973-10-04 1975-05-02 Arjomari Prioux Non-photocopiable security document - allows markings to be read by eye but reflects uniform light when illuminated
JPS55100587A (en) * 1979-01-29 1980-07-31 Toppan Printing Co Ltd Image forming material
GB2096055B (en) * 1979-09-17 1985-02-27 Auken John A Van Anti-copying systems for copying machines

Also Published As

Publication number Publication date
AU560208B2 (en) 1987-04-02
DK243283D0 (da) 1983-05-30
EP0119344B1 (en) 1988-01-27
NZ205794A (en) 1987-02-20
DK243283A (da) 1984-09-17
FI831891L (fi) 1984-09-17
ATE32274T1 (de) 1988-02-15
FI79671B (fi) 1989-10-31
JPH0513318B2 (no) 1993-02-22
JPS59174870A (ja) 1984-10-03
HK98688A (en) 1988-12-16
CA1214805A (en) 1986-12-02
EP0119344A1 (en) 1984-09-26
AU1811083A (en) 1984-09-20
NO171099C (no) 1993-01-27
FI831891A0 (fi) 1983-05-26
NO831896L (no) 1984-09-17
DE3375527D1 (en) 1988-03-03
NO171099B (no) 1992-10-19
ZA833659B (en) 1984-10-31

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: VOTICKY, MICHAEL P.

Owner name: GARDNER, NORMAN A.