BE464869A - - Google Patents
Info
- Publication number
- BE464869A BE464869A BE464869DA BE464869A BE 464869 A BE464869 A BE 464869A BE 464869D A BE464869D A BE 464869DA BE 464869 A BE464869 A BE 464869A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15010/39A GB529448A (en) | 1939-05-19 | 1939-05-19 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE464869A true BE464869A (en:Method) |
Family
ID=10051469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE464869D BE464869A (en:Method) | 1939-05-19 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2289528A (en:Method) |
| BE (1) | BE464869A (en:Method) |
| GB (1) | GB529448A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB759693A (en) * | 1951-02-16 | 1956-10-24 | Gen Electric Co Ltd | Improvements in or relating to automatic telephone systems |
-
0
- BE BE464869D patent/BE464869A/xx unknown
-
1939
- 1939-05-19 GB GB15010/39A patent/GB529448A/en not_active Expired
-
1940
- 1940-04-15 US US329609A patent/US2289528A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB529448A (en) | 1940-11-21 |
| US2289528A (en) | 1942-07-14 |