BE344473A - - Google Patents
Info
- Publication number
- BE344473A BE344473A BE344473DA BE344473A BE 344473 A BE344473 A BE 344473A BE 344473D A BE344473D A BE 344473DA BE 344473 A BE344473 A BE 344473A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/38—Encryption being effected by mechanical apparatus, e.g. rotating cams, switches, keytape punchers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Lock And Its Accessories (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1868967X | 1926-04-23 | ||
| FR32851T | 1926-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE344473A true BE344473A (en:Method) |
Family
ID=26182631
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE341583D BE341583A (en:Method) | 1926-04-23 | ||
| BE344473D BE344473A (en:Method) | 1926-04-23 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE341583D BE341583A (en:Method) | 1926-04-23 |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US1868967A (en:Method) |
| BE (2) | BE344473A (en:Method) |
| FR (2) | FR628788A (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767367C (de) * | 1939-05-11 | 1952-06-19 | Lorenz A G C | Verschluesselungseinrichtung zur zeitlichen Vertauschung von Fuenfer-Alphabet-Impulsen |
| US2539556A (en) * | 1941-07-11 | 1951-01-30 | Bell Telephone Labor Inc | Variable delay speech privacy system |
| US2552548A (en) * | 1943-03-06 | 1951-05-15 | William F Friedman | Facsimile enciphering system |
| US2465367A (en) * | 1943-03-12 | 1949-03-29 | William F Friedman | System for enciphering facsimiles |
-
0
- BE BE341583D patent/BE341583A/xx unknown
- BE BE344473D patent/BE344473A/xx unknown
-
1926
- 1926-04-23 FR FR628788D patent/FR628788A/fr not_active Expired
- 1926-08-03 FR FR32851D patent/FR32851E/fr not_active Expired
-
1927
- 1927-03-30 US US179440A patent/US1868967A/en not_active Expired - Lifetime
- 1927-07-14 US US205711A patent/US1767121A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE341583A (en:Method) | |
| FR32851E (fr) | 1928-03-06 |
| US1767121A (en) | 1930-06-24 |
| FR628788A (fr) | 1927-10-28 |
| US1868967A (en) | 1932-07-26 |