BE270782A - - Google Patents
Info
- Publication number
- BE270782A BE270782A BE270782DA BE270782A BE 270782 A BE270782 A BE 270782A BE 270782D A BE270782D A BE 270782DA BE 270782 A BE270782 A BE 270782A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1315/26A GB270782A (en) | 1926-01-16 | 1926-01-16 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE270782A true BE270782A (en:Method) |
Family
ID=9719841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE270782D BE270782A (en:Method) | 1926-01-16 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1763901A (en:Method) |
| BE (1) | BE270782A (en:Method) |
| FR (1) | FR636798A (en:Method) |
| GB (1) | GB270782A (en:Method) |
-
0
- BE BE270782D patent/BE270782A/xx unknown
-
1926
- 1926-01-16 GB GB1315/26A patent/GB270782A/en not_active Expired
- 1926-11-03 FR FR636798D patent/FR636798A/fr not_active Expired
- 1926-11-13 US US148120A patent/US1763901A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR636798A (fr) | 1928-04-16 |
| GB270782A (en) | 1927-05-16 |
| US1763901A (en) | 1930-06-17 |