GB794820A - Improvements in or relating to automatic telecommunication exchanges - Google Patents
Improvements in or relating to automatic telecommunication exchangesInfo
- Publication number
- GB794820A GB794820A GB605057A GB605057A GB794820A GB 794820 A GB794820 A GB 794820A GB 605057 A GB605057 A GB 605057A GB 605057 A GB605057 A GB 605057A GB 794820 A GB794820 A GB 794820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- relating
- automatic telecommunication
- telecommunication exchanges
- stages
- 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
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/525—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using tubes in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB605057A GB794820A (en) | 1954-10-05 | 1954-10-05 | Improvements in or relating to automatic telecommunication exchanges |
FR69087D FR69087E (fr) | 1954-10-05 | 1955-10-05 | Circuits de commutation utilisant des tubes à décharge gazeuse |
BE541832A BE541832A (enrdf_load_html_response) | 1954-10-05 | 1955-10-05 | |
GB2398556A GB794819A (en) | 1954-10-05 | 1956-08-03 | Improvements in or relating to automatic telecommunication exchanges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB605057A GB794820A (en) | 1954-10-05 | 1954-10-05 | Improvements in or relating to automatic telecommunication exchanges |
Publications (1)
Publication Number | Publication Date |
---|---|
GB794820A true GB794820A (en) | 1958-05-14 |
Family
ID=9807494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB605057A Expired GB794820A (en) | 1954-10-05 | 1954-10-05 | Improvements in or relating to automatic telecommunication exchanges |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE541832A (enrdf_load_html_response) |
FR (1) | FR69087E (enrdf_load_html_response) |
GB (1) | GB794820A (enrdf_load_html_response) |
-
1954
- 1954-10-05 GB GB605057A patent/GB794820A/en not_active Expired
-
1955
- 1955-10-05 BE BE541832A patent/BE541832A/xx unknown
- 1955-10-05 FR FR69087D patent/FR69087E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR69087E (fr) | 1958-09-22 |
BE541832A (enrdf_load_html_response) | 1959-08-28 |
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