BE435305A - - Google Patents
Info
- Publication number
- BE435305A BE435305A BE435305DA BE435305A BE 435305 A BE435305 A BE 435305A BE 435305D A BE435305D A BE 435305DA BE 435305 A BE435305 A BE 435305A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2028938A GB516802A (en) | 1938-07-08 | 1938-07-08 | Improvements in or relating to electrical communication secrecy systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE435305A true BE435305A (US07922777-20110412-C00004.png) |
Family
ID=10143512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE435305D BE435305A (US07922777-20110412-C00004.png) | 1938-07-08 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE435305A (US07922777-20110412-C00004.png) |
| FR (1) | FR858757A (US07922777-20110412-C00004.png) |
| GB (1) | GB516802A (US07922777-20110412-C00004.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102521A (en) * | 1961-10-20 | 1978-07-25 | Boelkow Entwicklungen Kg | System for signal coding |
-
0
- BE BE435305D patent/BE435305A/xx unknown
-
1938
- 1938-07-08 GB GB2028938A patent/GB516802A/en not_active Expired
-
1939
- 1939-07-05 FR FR858757D patent/FR858757A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR858757A (fr) | 1940-12-03 |
| GB516802A (en) | 1940-01-11 |
