BE476547A - - Google Patents
Info
- Publication number
- BE476547A BE476547A BE476547DA BE476547A BE 476547 A BE476547 A BE 476547A BE 476547D A BE476547D A BE 476547DA BE 476547 A BE476547 A BE 476547A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2671645A GB602119A (en) | 1945-10-12 | 1945-10-12 | Improvements in or relating to direct call telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476547A true BE476547A (en:Method) |
Family
ID=10248105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476547D BE476547A (en:Method) | 1945-10-12 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE476547A (en:Method) |
| FR (1) | FR956810A (en:Method) |
| GB (1) | GB602119A (en:Method) |
-
0
- FR FR956810D patent/FR956810A/fr not_active Expired
- BE BE476547D patent/BE476547A/xx unknown
-
1945
- 1945-10-12 GB GB2671645A patent/GB602119A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR956810A (en:Method) | 1950-02-08 |
| GB602119A (en) | 1948-05-20 |