JPS5229221A - Method for discriminating autheticity of engraved photograph - Google Patents
Method for discriminating autheticity of engraved photographInfo
- 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
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
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)
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 |
-
1975
- 1975-08-30 JP JP50105219A patent/JPS5229221A/en active Pending
Cited By (2)
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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