BE513751A - - Google Patents
Info
- Publication number
- BE513751A BE513751A BE513751DA BE513751A BE 513751 A BE513751 A BE 513751A BE 513751D A BE513751D A BE 513751DA BE 513751 A BE513751 A BE 513751A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES1614A DE838773C (de) | 1950-02-08 | 1950-02-08 | Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen mit Relaiswaehlern |
| GB1932152A GB730782A (en) | 1952-07-30 | 1952-07-30 | Improvements in or relating to circuit arrangements for telecommunication installations comprising relay selectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE513751A true BE513751A (en:Method) |
Family
ID=25994681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE513751D BE513751A (en:Method) | 1950-02-08 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2875280A (en:Method) |
| BE (1) | BE513751A (en:Method) |
| DE (1) | DE838773C (en:Method) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530845A (en) * | 1945-12-03 | 1950-11-21 | Automatic Elect Lab | Relay automatic telephone system |
| US2541624A (en) * | 1947-07-02 | 1951-02-13 | Automatic Elect Lab | Automatic telephone system-trunk selection |
| US2552792A (en) * | 1947-10-18 | 1951-05-15 | Automatic Elect Lab | Telephone system |
| US2625610A (en) * | 1947-12-05 | 1953-01-13 | Bell Telephone Labor Inc | Relay permutation-type switching system |
| US2574944A (en) * | 1947-12-10 | 1951-11-13 | Automatic Elect Lab | All relay automatic telephone system trunk selection |
-
0
- BE BE513751D patent/BE513751A/xx unknown
-
1950
- 1950-02-08 DE DES1614A patent/DE838773C/de not_active Expired
-
1953
- 1953-02-20 US US338103A patent/US2875280A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE838773C (de) | 1953-08-31 |
| US2875280A (en) | 1959-02-24 |