NL193626A - - Google Patents
Info
- Publication number
- NL193626A NL193626A NL193626DA NL193626A NL 193626 A NL193626 A NL 193626A NL 193626D A NL193626D A NL 193626DA NL 193626 A NL193626 A NL 193626A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Relay Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE773558X | 1953-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL193626A true NL193626A (xx) |
Family
ID=20333414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL193626D NL193626A (xx) | 1953-12-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2873322A (xx) |
| DE (1) | DE1137774B (xx) |
| FR (1) | FR1145128A (xx) |
| GB (1) | GB773558A (xx) |
| NL (1) | NL193626A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3159721A (en) * | 1960-07-13 | 1964-12-01 | Bell Telephone Labor Inc | Outgoing trunk identification circuit |
| DE1153800B (de) * | 1961-08-01 | 1963-09-05 | Siemens Ag | Schaltungsanordnung fuer Fernmeldevermittlungsanlagen, insbesondere Fernsprechwaehlanlagen, in denen Verbindungswege unter dem Einfluss von Markierern, Einstelleinrichtungen od. dgl. durchgeschaltet werden |
| DE1236600B (de) * | 1965-07-17 | 1967-03-16 | Standard Elek K Lorenz Ag | Verfahren und Schaltungsanordnung zur UEberwachung des Verbindungsaufbaues in einer durch Markierer zentral gesteuerten Koppelanordnung |
| US4048451A (en) * | 1976-03-19 | 1977-09-13 | Bell Telephone Laboratories, Incorporated | Arrangement for monitoring live call disposition signals |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE577640C (de) * | 1931-03-16 | 1933-06-02 | Standard Elek Zitaets Ges A G | Schaltungsanordnung zum Pruefen von Leitungen in Fernsprechanlagen |
| US2585904A (en) * | 1948-10-29 | 1952-02-19 | Bell Telephone Labor Inc | Crossbar telephone system |
| US2508052A (en) * | 1948-10-29 | 1950-05-16 | Bell Telephone Labor Inc | Trouble recorder control circuit |
-
0
- NL NL193626D patent/NL193626A/xx unknown
-
1954
- 1954-12-28 US US478122A patent/US2873322A/en not_active Expired - Lifetime
- 1954-12-30 GB GB37684/54A patent/GB773558A/en not_active Expired
- 1954-12-30 DE DEV8272A patent/DE1137774B/de active Pending
- 1954-12-30 FR FR1145128D patent/FR1145128A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1145128A (fr) | 1957-10-22 |
| DE1137774B (de) | 1962-10-11 |
| GB773558A (en) | 1957-04-24 |
| US2873322A (en) | 1959-02-10 |