GB675894A - Circuit arrangement for private automatic branch exchanges - Google Patents
Circuit arrangement for private automatic branch exchangesInfo
- Publication number
- GB675894A GB675894A GB901650A GB901650A GB675894A GB 675894 A GB675894 A GB 675894A GB 901650 A GB901650 A GB 901650A GB 901650 A GB901650 A GB 901650A GB 675894 A GB675894 A GB 675894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extension
- relay
- master station
- exchange line
- interim
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1949P0039733 DE832305C (de) | 1949-04-12 | 1949-04-12 | Schaltungsanordnung fuer Fernsprechnebenstellenanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB675894A true GB675894A (en) | 1952-07-16 |
Family
ID=6593793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB901650A Expired GB675894A (en) | 1949-04-12 | 1950-04-12 | Circuit arrangement for private automatic branch exchanges |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE495079A (enrdf_load_stackoverflow) |
| DE (1) | DE832305C (enrdf_load_stackoverflow) |
| GB (1) | GB675894A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940360C (de) * | 1953-02-11 | 1956-03-15 | Elektrotechnische Werkstaetten | Schaltungsanordnung fuer Fernsprech-Nebenstellenanlagen |
| DE972875C (de) * | 1953-09-13 | 1959-10-22 | Siemens Ag | Schaltungsanordnung fuer Fernsprechnebenstellenanlagen mit Waehler-betrieb und Sprechstellen verschiedener Verkehrsberechtigung |
-
0
- BE BE495079D patent/BE495079A/xx unknown
-
1949
- 1949-04-12 DE DE1949P0039733 patent/DE832305C/de not_active Expired
-
1950
- 1950-04-12 GB GB901650A patent/GB675894A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE832305C (de) | 1952-02-21 |
| BE495079A (enrdf_load_stackoverflow) |
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