LU71469A1 - - Google Patents
Info
- Publication number
- LU71469A1 LU71469A1 LU71469A LU71469A LU71469A1 LU 71469 A1 LU71469 A1 LU 71469A1 LU 71469 A LU71469 A LU 71469A LU 71469 A LU71469 A LU 71469A LU 71469 A1 LU71469 A1 LU 71469A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
-
- 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)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2362328A DE2362328C2 (de) | 1973-12-14 | 1973-12-14 | Schaltungsanordnung zur Erzeugung des Erstrufs und der Weiterrufs in Fernsprechanlagen, insbesondere in Fernsprechnebenstellenanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU71469A1 true LU71469A1 (de) | 1975-06-11 |
Family
ID=5900822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU71469A LU71469A1 (de) | 1973-12-14 | 1974-12-12 |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT333853B (de) |
| BE (1) | BE823333A (de) |
| CH (1) | CH588195A5 (de) |
| DE (1) | DE2362328C2 (de) |
| DK (1) | DK139499C (de) |
| FR (1) | FR2254918B1 (de) |
| GB (1) | GB1482366A (de) |
| IT (1) | IT1026913B (de) |
| LU (1) | LU71469A1 (de) |
| NL (1) | NL158672B (de) |
| SE (1) | SE7415708L (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538597C2 (de) * | 1975-08-29 | 1982-01-14 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und Schaltungsanordnung zur Durchführung des Verfahrens für Fernmelde-, insbesondere Fernsprechanlagen mit Erstruf und anschließendem Weiterruf eines gewünschten Teilnehmers |
| DE2935119C2 (de) * | 1979-08-30 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Indirekt gesteuerte Vermittlungsanlage, insbesondere Fernsprechnebenstellenanlage, mit einem zentralen Steuerwerk und mit einer Überwachung der gewählten Fernamtskennzahl |
| DE3218506A1 (de) * | 1982-04-02 | 1983-10-13 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung fuer fernmeldevermittlungsanlagen, insbesondere fernsprechvermittlungsanlagen, mit schalteinrichtungen zur aussendung von signalen |
-
1973
- 1973-12-14 DE DE2362328A patent/DE2362328C2/de not_active Expired
-
1974
- 1974-11-20 AT AT929574A patent/AT333853B/de not_active IP Right Cessation
- 1974-12-09 NL NL7416008.A patent/NL158672B/xx not_active IP Right Cessation
- 1974-12-10 FR FR7440469A patent/FR2254918B1/fr not_active Expired
- 1974-12-10 GB GB53278/74A patent/GB1482366A/en not_active Expired
- 1974-12-10 IT IT30347/74A patent/IT1026913B/it active
- 1974-12-11 CH CH1650974A patent/CH588195A5/xx not_active IP Right Cessation
- 1974-12-12 LU LU71469A patent/LU71469A1/xx unknown
- 1974-12-13 DK DK650874A patent/DK139499C/da active
- 1974-12-13 BE BE151488A patent/BE823333A/xx not_active IP Right Cessation
- 1974-12-13 SE SE7415708A patent/SE7415708L/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK650874A (de) | 1975-08-11 |
| CH588195A5 (de) | 1977-05-31 |
| DE2362328B1 (de) | 1975-03-20 |
| NL158672B (nl) | 1978-11-15 |
| IT1026913B (it) | 1978-10-20 |
| DE2362328C2 (de) | 1979-11-15 |
| DK139499C (da) | 1979-08-06 |
| SE7415708L (de) | 1975-06-16 |
| GB1482366A (en) | 1977-08-10 |
| DK139499B (da) | 1979-02-26 |
| AT333853B (de) | 1976-12-10 |
| FR2254918B1 (de) | 1979-10-12 |
| ATA929574A (de) | 1976-04-15 |
| FR2254918A1 (de) | 1975-07-11 |
| BE823333A (fr) | 1975-06-13 |
| NL7416008A (nl) | 1975-06-17 |