AU4154285A - Security system - Google Patents
Security systemInfo
- Publication number
- AU4154285A AU4154285A AU41542/85A AU4154285A AU4154285A AU 4154285 A AU4154285 A AU 4154285A AU 41542/85 A AU41542/85 A AU 41542/85A AU 4154285 A AU4154285 A AU 4154285A AU 4154285 A AU4154285 A AU 4154285A
- Authority
- AU
- Australia
- Prior art keywords
- security system
- security
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8408603 | 1984-04-04 | ||
GB8408603 | 1984-04-04 | ||
GB8425017 | 1984-10-03 | ||
GB848425017A GB8425017D0 (en) | 1984-10-03 | 1984-10-03 | Security systems |
Publications (1)
Publication Number | Publication Date |
---|---|
AU4154285A true AU4154285A (en) | 1985-11-01 |
Family
ID=26287554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU41542/85A Abandoned AU4154285A (en) | 1984-04-04 | 1985-04-01 | Security system |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0176538A1 (en) |
AU (1) | AU4154285A (en) |
CA (1) | CA1232080A (en) |
ES (1) | ES8802093A1 (en) |
IL (1) | IL74782A0 (en) |
WO (1) | WO1985004746A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH555577A (en) * | 1972-06-09 | 1974-10-31 | Gretag Ag | METHOD AND DEVICE FOR CONVERTING CLEAR GRAPHICAL INFORMATION INTO ENCRYPTED GRAPHICAL INFORMATION AND REVERSE |
US3814904A (en) * | 1972-10-20 | 1974-06-04 | Rca Corp | Cryptographically coded cards employing synthetic light modifying portion |
US3937565A (en) * | 1974-06-03 | 1976-02-10 | Alasia Alfred Victor | Process of coding indicia and product produced thereby |
GB2101376B (en) * | 1981-07-11 | 1986-05-21 | John Gordon Lawrence | Method and apparatus for use against counterfeiting |
-
1985
- 1985-04-01 EP EP85901505A patent/EP0176538A1/en not_active Withdrawn
- 1985-04-01 WO PCT/GB1985/000130 patent/WO1985004746A1/en not_active Application Discontinuation
- 1985-04-01 AU AU41542/85A patent/AU4154285A/en not_active Abandoned
- 1985-04-02 IL IL74782A patent/IL74782A0/en unknown
- 1985-04-03 ES ES541987A patent/ES8802093A1/en not_active Expired
- 1985-04-04 CA CA000478592A patent/CA1232080A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1232080A (en) | 1988-01-26 |
ES8802093A1 (en) | 1987-01-16 |
ES541987A0 (en) | 1987-01-16 |
WO1985004746A1 (en) | 1985-10-24 |
IL74782A0 (en) | 1985-07-31 |
EP0176538A1 (en) | 1986-04-09 |
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