BE500640A - - Google Patents
Info
- Publication number
- BE500640A BE500640A BE500640DA BE500640A BE 500640 A BE500640 A BE 500640A BE 500640D A BE500640D A BE 500640DA BE 500640 A BE500640 A BE 500640A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1098/50A GB754654A (en) | 1950-01-16 | 1950-01-16 | Improvements relating to equipment for interconnecting electrical circuits such as telephone exchange circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE500640A true BE500640A (da) |
Family
ID=9716119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE500640D BE500640A (da) | 1950-01-16 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2688662A (da) |
| BE (1) | BE500640A (da) |
| CH (1) | CH312455A (da) |
| DE (1) | DE910911C (da) |
| FR (1) | FR1105157A (da) |
| GB (1) | GB754654A (da) |
| NL (2) | NL158592B (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE24680E (en) * | 1950-09-22 | 1959-08-11 | Automatic telephone exchanges | |
| US2872518A (en) * | 1951-11-23 | 1959-02-03 | Gen Dynamics Corp | Party line telephone system |
| DE1001334B (de) * | 1954-09-06 | 1957-01-24 | Josef Dirr | Schaltungsanordnung fuer Anrufsucher, bei der die Anrufe ohne individuelle Markierglieder ausgewertet werden |
| US2976365A (en) * | 1954-09-10 | 1961-03-21 | Bell Telephone Labor Inc | Automatic telephone traffic recorder employing magnetic tape |
| GB782875A (da) * | 1954-09-30 | |||
| NL201785A (da) * | 1954-11-27 | |||
| US2890286A (en) * | 1954-12-02 | 1959-06-09 | Siemens Edison Swan Ltd | Automatic exchange systems |
| DE1138112B (de) * | 1958-03-03 | 1962-10-18 | Ericsson Telephones Ltd | Schaltungsanordnung fuer eine Impulsauswerteeinrichtung in Fernmeldeanlagen, insbesondere Fernsprechanlagen |
| US3114007A (en) * | 1959-07-01 | 1963-12-10 | Bell Telephone Labor Inc | Supervisory circuit |
| BE626592A (da) * | 1962-01-02 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2204055A (en) * | 1938-11-25 | 1940-06-11 | Bell Telephone Labor Inc | Telephone system |
| US2285972A (en) * | 1940-06-22 | 1942-06-09 | Bell Telephone Labor Inc | Telephone system |
| GB565654A (en) * | 1942-08-06 | 1944-11-21 | Automatic Telephone & Elect | Improvements in telephone systems |
| US2531624A (en) * | 1947-05-01 | 1950-11-28 | Bell Telephone Labor Inc | Selective signaling system |
| GB644932A (en) * | 1948-01-16 | 1950-10-18 | Standard Telephones Cables Ltd | Improvements in or relating to signal compression and expansion arrangements in electric communication systems |
-
0
- BE BE500640D patent/BE500640A/xx unknown
- NL NL94734D patent/NL94734C/xx active
- NL NL6912923.A patent/NL158592B/xx unknown
-
1950
- 1950-01-16 GB GB1098/50A patent/GB754654A/en not_active Expired
-
1951
- 1951-01-13 US US205917A patent/US2688662A/en not_active Expired - Lifetime
- 1951-01-16 DE DEI3711A patent/DE910911C/de not_active Expired
- 1951-01-16 CH CH312455D patent/CH312455A/de unknown
- 1951-01-16 FR FR1105157D patent/FR1105157A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL94734C (da) | |
| NL158592B (nl) | |
| CH312455A (de) | 1955-12-31 |
| GB754654A (en) | 1956-08-08 |
| US2688662A (en) | 1954-09-07 |
| DE910911C (de) | 1954-06-21 |
| FR1105157A (fr) | 1955-11-28 |