JPS5229221A - Method for discriminating autheticity of engraved photograph - Google Patents

Method for discriminating autheticity of engraved photograph

Info

Publication number
JPS5229221A
JPS5229221A JP50105219A JP10521975A JPS5229221A JP S5229221 A JPS5229221 A JP S5229221A JP 50105219 A JP50105219 A JP 50105219A JP 10521975 A JP10521975 A JP 10521975A JP S5229221 A JPS5229221 A JP S5229221A
Authority
JP
Japan
Prior art keywords
engraved
autheticity
discriminating
photograph
twins
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.)
Pending
Application number
JP50105219A
Other languages
Japanese (ja)
Inventor
Hiroshi Senba
Kiyoshi Yugawa
Yoshio Takano
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.)
Furukawa Electric Co Ltd
Fuji Denki Kaden KK
Original Assignee
Furukawa Electric Co Ltd
Fuji Denki Kaden KK
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 Furukawa Electric Co Ltd, Fuji Denki Kaden KK filed Critical Furukawa Electric Co Ltd
Priority to JP50105219A priority Critical patent/JPS5229221A/en
Publication of JPS5229221A publication Critical patent/JPS5229221A/en
Pending legal-status Critical Current

Links

Landscapes

  • Collating Specific Patterns (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE: To prevent forgery and falsification by examining engraved photographs and the like formed by engraving inverted twins of similar quadrangular pyramids with parallel rays.
COPYRIGHT: (C)1977,JPO&Japio
JP50105219A 1975-08-30 1975-08-30 Method for discriminating autheticity of engraved photograph Pending JPS5229221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50105219A JPS5229221A (en) 1975-08-30 1975-08-30 Method for discriminating autheticity of engraved photograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50105219A JPS5229221A (en) 1975-08-30 1975-08-30 Method for discriminating autheticity of engraved photograph

Publications (1)

Publication Number Publication Date
JPS5229221A true JPS5229221A (en) 1977-03-04

Family

ID=14401545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50105219A Pending JPS5229221A (en) 1975-08-30 1975-08-30 Method for discriminating autheticity of engraved photograph

Country Status (1)

Country Link
JP (1) JPS5229221A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6339721A (en) * 1986-07-31 1988-02-20 Amada Co Ltd Cutter
JPS6339719A (en) * 1986-07-31 1988-02-20 Amada Co Ltd Cutting method for material to be cut and its device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6339721A (en) * 1986-07-31 1988-02-20 Amada Co Ltd Cutter
JPS6339719A (en) * 1986-07-31 1988-02-20 Amada Co Ltd Cutting method for material to be cut and its device

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