BE563969A - - Google Patents
Info
- Publication number
- BE563969A BE563969A BE563969DA BE563969A BE 563969 A BE563969 A BE 563969A BE 563969D A BE563969D A BE 563969DA BE 563969 A BE563969 A BE 563969A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US633948A US2897285A (en) | 1957-01-14 | 1957-01-14 | Intercommunicating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE563969A true BE563969A (en:Method) |
Family
ID=24541819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE563969D BE563969A (en:Method) | 1957-01-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2897285A (en:Method) |
| BE (1) | BE563969A (en:Method) |
| DE (1) | DE1182305B (en:Method) |
| FR (1) | FR1197810A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10112462B4 (de) * | 1999-08-27 | 2006-08-31 | Helmut Schaepe | Verfahren und erweiterte Schaltungsanordnung für die Ergänzungsschaltung zum Anschließen von 2 Telefone an einer Telefonleitung mit eigener Ruf-Nr. auch mit Verbindung untereinander |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE640495C (de) * | 1933-05-20 | 1937-01-06 | Lorenz Akt Ges C | Schaltanordnung fuer Wahlfernsprechanlagen |
| BE467114A (en:Method) * | 1944-07-21 | |||
| DE933396C (de) * | 1953-05-08 | 1955-09-22 | Normalzeit G M B H | Schaltungsanordnung fuer Fernsprechlinienwaehleranlagen |
| DE1006014B (de) * | 1954-03-24 | 1957-04-11 | Allg Telefon Fabrik G M B H | Schaltungsanordnung fuer Fernsprechanlagen, deren Teilnehmerleitungen wahlweise an eine Reihenanlage oder an eine Linienwaehleranlage angeschlossen werden koennen |
-
0
- BE BE563969D patent/BE563969A/xx unknown
-
1957
- 1957-01-14 US US633948A patent/US2897285A/en not_active Expired - Lifetime
-
1958
- 1958-01-10 FR FR1197810D patent/FR1197810A/fr not_active Expired
- 1958-01-11 DE DEG23701A patent/DE1182305B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2897285A (en) | 1959-07-28 |
| FR1197810A (fr) | 1959-12-03 |
| DE1182305B (de) | 1964-11-26 |