BE508254A - - Google Patents
Info
- Publication number
- BE508254A BE508254A BE508254DA BE508254A BE 508254 A BE508254 A BE 508254A BE 508254D A BE508254D A BE 508254DA BE 508254 A BE508254 A BE 508254A
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL301972X | 1951-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE508254A true BE508254A (en:Method) |
Family
ID=19783326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE508254D BE508254A (en:Method) | 1951-01-22 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE508254A (en:Method) |
| CH (1) | CH301972A (en:Method) |
| DE (1) | DE907537C (en:Method) |
| FR (1) | FR1056900A (en:Method) |
| GB (1) | GB747174A (en:Method) |
| NL (2) | NL81072C (en:Method) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1474648A (en) * | 1920-10-01 | 1923-11-20 | Automatic Electric Co | Automatic telephone system |
| DE460793C (de) * | 1921-04-08 | 1928-06-12 | Siemens & Halske Akt Ges | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb |
| CH238239A (de) * | 1943-07-03 | 1945-06-30 | Fides Gmbh | Schaltungsanordnung in Fernsprechanlagen mit Wählerbetrieb. |
| US2397887A (en) * | 1944-10-05 | 1946-04-02 | American Telephone & Telegraph | Automatic alternate routing of interoffice calls |
| FR933606A (fr) * | 1946-08-27 | 1948-04-27 | Constr Telephoniques | Perfectionnements aux systèmes de téléphonie automatique |
-
0
- BE BE508254D patent/BE508254A/xx unknown
- NL NL7311095.A patent/NL158691B/xx unknown
- NL NL81072D patent/NL81072C/xx active
-
1952
- 1952-01-04 CH CH301972D patent/CH301972A/fr unknown
- 1952-01-06 DE DEST4329A patent/DE907537C/de not_active Expired
- 1952-01-09 GB GB726/52A patent/GB747174A/en not_active Expired
- 1952-01-15 FR FR1056900D patent/FR1056900A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL81072C (en:Method) | |
| CH301972A (fr) | 1954-09-30 |
| GB747174A (en) | 1956-03-28 |
| DE907537C (de) | 1954-03-25 |
| FR1056900A (fr) | 1954-03-03 |
| NL158691B (nl) |