BE562566A - - Google Patents
Info
- Publication number
- BE562566A BE562566A BE562566DA BE562566A BE 562566 A BE562566 A BE 562566A BE 562566D A BE562566D A BE 562566DA BE 562566 A BE562566 A BE 562566A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/525—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using tubes in the switching stages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2622956A GB801576A (en) | 1956-08-28 | 1956-08-28 | Improvements in or relating to electrical signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE562566A true BE562566A (en, 2012) |
Family
ID=10240356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE562566D BE562566A (en, 2012) | 1956-08-28 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE562566A (en, 2012) |
| DE (1) | DE1076749B (en, 2012) |
| FR (1) | FR1180780A (en, 2012) |
| GB (1) | GB801576A (en, 2012) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE660675C (de) * | 1932-02-03 | 1938-06-01 | Gerhard Seelmann Eggebert Dipl | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb |
| DE826167C (de) * | 1950-01-10 | 1951-12-27 | Siemens & Halske A G | Schaltungsanordnung fuer Fernsprechgebuehrenanzeiger und Muenzfernsprecher |
-
0
- BE BE562566D patent/BE562566A/xx unknown
-
1956
- 1956-08-28 GB GB2622956A patent/GB801576A/en not_active Expired
-
1957
- 1957-07-31 FR FR1180780D patent/FR1180780A/fr not_active Expired
- 1957-08-27 DE DEI13636A patent/DE1076749B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB801576A (en) | 1958-09-17 |
| FR1180780A (fr) | 1959-06-09 |
| DE1076749B (de) | 1960-03-03 |