GB1341487A - Telecommunications exchange systems - Google Patents
Telecommunications exchange systemsInfo
- Publication number
- GB1341487A GB1341487A GB4000571A GB4000571A GB1341487A GB 1341487 A GB1341487 A GB 1341487A GB 4000571 A GB4000571 A GB 4000571A GB 4000571 A GB4000571 A GB 4000571A GB 1341487 A GB1341487 A GB 1341487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- contact
- winding
- free
- busy
- 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
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702043767 DE2043767C (de) | 1970-09-03 | Schaltungsanordnung zum Suchen und Auswahlen freier Verbindungswege in einem mehrere Koppelstufen enthaltenden Koppelfeld fur Fernmelde , insbesondere fur Fernsprechanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1341487A true GB1341487A (en) | 1973-12-19 |
Family
ID=5781516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4000571A Expired GB1341487A (en) | 1970-09-03 | 1971-08-26 | Telecommunications exchange systems |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT317306B (enExample) |
| BE (1) | BE772174A (enExample) |
| CH (1) | CH537135A (enExample) |
| FR (1) | FR2102045A5 (enExample) |
| GB (1) | GB1341487A (enExample) |
| LU (1) | LU63817A1 (enExample) |
| NL (1) | NL7112084A (enExample) |
| SE (1) | SE376353B (enExample) |
-
1971
- 1971-08-12 AT AT705871A patent/AT317306B/de not_active IP Right Cessation
- 1971-08-17 CH CH1207071A patent/CH537135A/de not_active IP Right Cessation
- 1971-08-26 GB GB4000571A patent/GB1341487A/en not_active Expired
- 1971-08-31 FR FR7131429A patent/FR2102045A5/fr not_active Expired
- 1971-09-01 LU LU63817D patent/LU63817A1/xx unknown
- 1971-09-02 NL NL7112084A patent/NL7112084A/xx unknown
- 1971-09-03 SE SE1123471A patent/SE376353B/xx unknown
- 1971-09-03 BE BE772174A patent/BE772174A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH537135A (de) | 1973-05-15 |
| FR2102045A5 (enExample) | 1972-03-31 |
| DE2043767B2 (de) | 1972-03-16 |
| NL7112084A (enExample) | 1972-03-07 |
| AT317306B (de) | 1974-08-26 |
| LU63817A1 (enExample) | 1972-01-11 |
| BE772174A (fr) | 1972-03-03 |
| SE376353B (enExample) | 1975-05-12 |
| DE2043767A1 (enExample) | 1972-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |