GB1291139A - Improvements in or relating to telecommunication systems - Google Patents
Improvements in or relating to telecommunication systemsInfo
- Publication number
- GB1291139A GB1291139A GB3689470A GB3689470A GB1291139A GB 1291139 A GB1291139 A GB 1291139A GB 3689470 A GB3689470 A GB 3689470A GB 3689470 A GB3689470 A GB 3689470A GB 1291139 A GB1291139 A GB 1291139A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groups
- lock
- processor
- connectible
- july
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Hardware Redundancy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691939009 DE1939009B2 (de) | 1969-07-31 | 1969-07-31 | Schaltungsanordnung fuer fernmeldeanlagen insbesondere fern sprechvermittlungsanlagen in welchen individuelle schaltein reichtungen an zentrale schalteinrichtungen einzeln ange schaltet werden |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1291139A true GB1291139A (en) | 1972-09-27 |
Family
ID=5741529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3689470A Expired GB1291139A (en) | 1969-07-31 | 1970-07-30 | Improvements in or relating to telecommunication systems |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT309538B (fr) |
BE (1) | BE754249A (fr) |
CH (1) | CH516270A (fr) |
DE (1) | DE1939009B2 (fr) |
FR (1) | FR2055354A5 (fr) |
GB (1) | GB1291139A (fr) |
LU (1) | LU61442A1 (fr) |
-
0
- BE BE754249D patent/BE754249A/fr unknown
-
1969
- 1969-07-31 DE DE19691939009 patent/DE1939009B2/de not_active Withdrawn
-
1970
- 1970-07-20 FR FR7026667A patent/FR2055354A5/fr not_active Expired
- 1970-07-28 CH CH1140970A patent/CH516270A/de not_active IP Right Cessation
- 1970-07-29 LU LU61442D patent/LU61442A1/xx unknown
- 1970-07-29 AT AT692170A patent/AT309538B/de not_active IP Right Cessation
- 1970-07-30 GB GB3689470A patent/GB1291139A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT309538B (de) | 1973-08-27 |
CH516270A (de) | 1971-11-30 |
LU61442A1 (fr) | 1970-10-05 |
BE754249A (fr) | 1971-02-01 |
DE1939009A1 (de) | 1971-02-11 |
DE1939009B2 (de) | 1971-12-09 |
FR2055354A5 (fr) | 1971-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |