SE338072B - - Google Patents
Info
- Publication number
- SE338072B SE338072B SE05796/67A SE579667A SE338072B SE 338072 B SE338072 B SE 338072B SE 05796/67 A SE05796/67 A SE 05796/67A SE 579667 A SE579667 A SE 579667A SE 338072 B SE338072 B SE 338072B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Soil Working Implements (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST25291A DE1274198B (de) | 1966-04-27 | 1966-04-27 | Schaltungsanordnung fuer zentralgesteuerte oder registergesteuerte Fernsprechnebenstellenanlagen mit Rueckfrageverkehr |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE338072B true SE338072B (el) | 1971-08-30 |
Family
ID=7460483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE05796/67A SE338072B (el) | 1966-04-27 | 1967-04-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3542966A (el) |
| DE (1) | DE1274198B (el) |
| GB (1) | GB1143455A (el) |
| GR (1) | GR33645B (el) |
| NL (1) | NL163088C (el) |
| NO (1) | NO122761B (el) |
| SE (1) | SE338072B (el) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052569A (en) * | 1976-07-09 | 1977-10-04 | Communication Equipment & Contracting Co., Inc. | Emergency call answering system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3115552A (en) * | 1961-11-28 | 1963-12-24 | American Telephone & Telegraph | Telephone switching system |
| DE1182704B (de) * | 1963-09-20 | 1964-12-03 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer Fernsprechnebenstellenanlagen mit Tastaturwahl und Durchwahl der ueber Verbindungsleitungen von anderen Vermittlungsstellen ankommenden Verbindungen |
| DE1196251B (de) * | 1964-04-24 | 1965-07-08 | Siemens Ag | Schaltungsanordnung fuer eine zentral gesteuerte Fernsprechnebenstellenanlage |
| DE1206494B (de) * | 1964-09-03 | 1965-12-09 | Siemens Ag | Schaltungsanordnung fuer eine Fernsprechnebenstellenanlage in Koppelfeldtechnik und mit zentralen Einrichtungen fuer die Steuerung der Koppelpunkte des Sprechweges |
-
1966
- 1966-04-27 DE DEST25291A patent/DE1274198B/de not_active Withdrawn
-
1967
- 1967-04-14 US US630883A patent/US3542966A/en not_active Expired - Lifetime
- 1967-04-19 GR GR670133645A patent/GR33645B/el unknown
- 1967-04-21 GB GB18477/67A patent/GB1143455A/en not_active Expired
- 1967-04-25 SE SE05796/67A patent/SE338072B/xx unknown
- 1967-04-25 NO NO167862A patent/NO122761B/no unknown
- 1967-04-27 NL NL6705921.A patent/NL163088C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| GR33645B (el) | 1968-01-03 |
| DE1274198B (de) | 1968-08-01 |
| NL163088C (nl) | 1980-07-15 |
| GB1143455A (en) | 1969-02-19 |
| NL6705921A (el) | 1967-10-30 |
| US3542966A (en) | 1970-11-24 |
| NO122761B (el) | 1971-08-09 |