NL12843C - - Google Patents
Info
- Publication number
- NL12843C NL12843C NL19686A NL19686A NL12843C NL 12843 C NL12843 C NL 12843C NL 19686 A NL19686 A NL 19686A NL 19686 A NL19686 A NL 19686A NL 12843 C NL12843 C NL 12843C
- Authority
- NL
- Netherlands
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
- 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)
- Accessory Devices And Overall Control Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US457419A US1510441A (en) | 1921-03-31 | 1921-03-31 | Electric coding machine |
| GB14330/21A GB185171A (en) | 1921-03-31 | 1921-05-23 | Electric coding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL12843C true NL12843C (fr) | 1925-05-15 |
Family
ID=26250489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19686A NL12843C (fr) | 1921-03-31 | 1921-06-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1510441A (fr) |
| FR (1) | FR537255A (fr) |
| GB (1) | GB185171A (fr) |
| NL (1) | NL12843C (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2964856A (en) * | 1941-03-10 | 1960-12-20 | Albert W Small | Method of and apparatus for cryptography |
| US4156314A (en) * | 1944-02-21 | 1979-05-29 | Leo Rosen | Rotors for a ciphering machine |
| US2984700A (en) * | 1944-09-22 | 1961-05-16 | Albert W Small | Method and apparatus for cryptography |
| US2513307A (en) * | 1946-05-02 | 1950-07-04 | Ibm | Coding means and method |
| US4143978A (en) * | 1978-05-04 | 1979-03-13 | The United States Of America As Represented By The Secretary Of The Navy | Electro-mechanical cipher machine |
| US8488779B2 (en) | 2011-07-25 | 2013-07-16 | Grey Heron Technologies, Llc | Method and system for conducting high speed, symmetric stream cipher encryption |
-
1921
- 1921-03-31 US US457419A patent/US1510441A/en not_active Expired - Lifetime
- 1921-05-23 GB GB14330/21A patent/GB185171A/en not_active Expired
- 1921-06-20 NL NL19686A patent/NL12843C/xx active
- 1921-06-22 FR FR537255D patent/FR537255A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1510441A (en) | 1924-09-30 |
| FR537255A (fr) | 1922-05-19 |
| GB185171A (en) | 1922-08-23 |