BE429992A - - Google Patents
Info
- Publication number
- BE429992A BE429992A BE429992DA BE429992A BE 429992 A BE429992 A BE 429992A BE 429992D A BE429992D A BE 429992DA BE 429992 A BE429992 A BE 429992A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR839781T | 1938-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE429992A true BE429992A (en:Method) |
Family
ID=9299706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE429992D BE429992A (en:Method) | 1938-06-24 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE429992A (en:Method) |
| FR (1) | FR839781A (en:Method) |
-
0
- BE BE429992D patent/BE429992A/xx unknown
-
1938
- 1938-06-24 FR FR839781D patent/FR839781A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR839781A (fr) | 1939-04-12 |