FR40624E - - Google Patents
Info
- Publication number
- FR40624E FR40624E FR40624DA FR40624E FR 40624 E FR40624 E FR 40624E FR 40624D A FR40624D A FR 40624DA FR 40624 E FR40624 E FR 40624E
- 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
-
- 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
- G09C3/06—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 mechanical
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Operated Clutches (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Common Mechanisms (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1930M0002630 DE576187C (de) | 1930-02-02 | 1930-02-02 | Schreibmaschine |
| DE1930M0024130 DE603254C (de) | 1930-02-02 | 1930-11-04 | Schreibmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR40624E true FR40624E (fr) | 1932-07-27 |
Family
ID=6569900
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR723038D Expired FR723038A (fr) | 1930-02-02 | 1931-01-30 | Perfectionnements aux machines à écrire, à écrire des calculs, à écrire à distance, à télégraphier en abrégé et analogues |
| FR40624D Expired FR40624E (fr) | 1930-02-02 | 1931-07-29 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR723038D Expired FR723038A (fr) | 1930-02-02 | 1931-01-30 | Perfectionnements aux machines à écrire, à écrire des calculs, à écrire à distance, à télégraphier en abrégé et analogues |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2044530A (fr) |
| DE (2) | DE576187C (fr) |
| FR (2) | FR723038A (fr) |
| GB (2) | GB361017A (fr) |
-
1930
- 1930-02-02 DE DE1930M0002630 patent/DE576187C/de not_active Expired
- 1930-09-01 GB GB26044/30A patent/GB361017A/en not_active Expired
- 1930-11-04 DE DE1930M0024130 patent/DE603254C/de not_active Expired
-
1931
- 1931-01-30 US US512433A patent/US2044530A/en not_active Expired - Lifetime
- 1931-01-30 FR FR723038D patent/FR723038A/fr not_active Expired
- 1931-07-29 FR FR40624D patent/FR40624E/fr not_active Expired
- 1931-09-14 GB GB25694/31A patent/GB385031A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE603254C (de) | 1934-10-06 |
| GB361017A (en) | 1931-11-19 |
| DE576187C (de) | 1933-05-09 |
| GB385031A (en) | 1932-12-22 |
| FR723038A (fr) | 1932-04-02 |
| US2044530A (en) | 1936-06-16 |