GB689266A - Overflow arrangements in automatic exchange systems - Google Patents
Overflow arrangements in automatic exchange systemsInfo
- Publication number
- GB689266A GB689266A GB25991/50A GB2599150A GB689266A GB 689266 A GB689266 A GB 689266A GB 25991/50 A GB25991/50 A GB 25991/50A GB 2599150 A GB2599150 A GB 2599150A GB 689266 A GB689266 A GB 689266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- register
- wire
- switch
- finder
- found
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR999478T | 1949-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB689266A true GB689266A (en) | 1953-03-25 |
Family
ID=9559771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25991/50A Expired GB689266A (en) | 1949-10-27 | 1950-10-25 | Overflow arrangements in automatic exchange systems |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE498998A (enrdf_load_stackoverflow) |
CH (1) | CH297627A (enrdf_load_stackoverflow) |
FR (1) | FR999478A (enrdf_load_stackoverflow) |
GB (1) | GB689266A (enrdf_load_stackoverflow) |
-
0
- BE BE498998D patent/BE498998A/xx unknown
-
1949
- 1949-10-27 FR FR999478D patent/FR999478A/fr not_active Expired
-
1950
- 1950-10-25 CH CH297627D patent/CH297627A/fr unknown
- 1950-10-25 GB GB25991/50A patent/GB689266A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH297627A (fr) | 1954-03-31 |
BE498998A (enrdf_load_stackoverflow) | |
FR999478A (fr) | 1952-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1053347A (enrdf_load_stackoverflow) | ||
GB949552A (en) | Electronic switching telephone system | |
GB409015A (en) | Improvements in or relating to telephone systems | |
GB567864A (en) | Improvements in or relating to telecommunication exchange systems | |
GB689266A (en) | Overflow arrangements in automatic exchange systems | |
GB683881A (en) | An automatic telephone or telegraph system | |
GB1268151A (en) | Improvements to selection systems for electrical circuits | |
GB698848A (en) | Improvements in or relating to private automatic branch telephone exchanges | |
GB769915A (en) | Improvements in or relating to electrical connecting circuits | |
US2504274A (en) | System for automatic telephone exchanges with crossbar switches and private branch exchange trunk lines | |
US2707728A (en) | Connector | |
US3111560A (en) | Line circuit | |
GB652629A (en) | Improvements in automatic switching systems | |
GB752375A (en) | Improvements in or relating to a circuit arrangement for an automatic telephone exchange | |
US2530103A (en) | Circuit for identifying the trunk connected to an operator's position | |
US2857471A (en) | Selector switch circuit | |
US2871418A (en) | Automatic telephone system | |
US3105116A (en) | Improvement relating to automatic telecommunication switching systems with party lines | |
GB653524A (en) | Improvements in automatic telephone systems | |
GB712027A (en) | Circuit arrangements for automatic telephone systems, particularly pabx-installations | |
GB688197A (en) | Toll circuits | |
GB588790A (en) | Improvements in or relating to automatic switches for use in telephone or like systems | |
GB555614A (en) | Improvements in or relating to telephone or like systems | |
GB338875A (en) | Improvements in or relating to automatic or semi-automatic telephone systems | |
GB703223A (en) | Improvements in telecommunication switching systems |