FR1193977A - - Google Patents
Info
- Publication number
- FR1193977A FR1193977A FR1193977DA FR1193977A FR 1193977 A FR1193977 A FR 1193977A FR 1193977D A FR1193977D A FR 1193977DA FR 1193977 A FR1193977 A FR 1193977A
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C3/00—Typewriters for ciphering or deciphering cryptographic text
- G09C3/04—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
- G09C3/08—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member the connections being electrical
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1193977A true FR1193977A (ja) | 1959-11-05 |
Family
ID=1568484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1193977D Expired FR1193977A (ja) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1193977A (ja) |
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0
- FR FR1193977D patent/FR1193977A/fr not_active Expired