GB668261A - Automatic switching system applicable to telephony - Google Patents
Automatic switching system applicable to telephonyInfo
- Publication number
- GB668261A GB668261A GB29292/45A GB2929245A GB668261A GB 668261 A GB668261 A GB 668261A GB 29292/45 A GB29292/45 A GB 29292/45A GB 2929245 A GB2929245 A GB 2929245A GB 668261 A GB668261 A GB 668261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- operates
- over
- wire
- circuit
- 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
- 238000004804 winding Methods 0.000 abstract 14
- 238000012360 testing method Methods 0.000 abstract 2
- 230000009699 differential effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
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)
- Mobile Radio Communication Systems (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR896466T | 1943-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB668261A true GB668261A (en) | 1952-03-12 |
Family
ID=9391132
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29292/45A Expired GB668261A (en) | 1943-03-26 | 1945-11-05 | Automatic switching system applicable to telephony |
GB5870/51A Expired GB668360A (en) | 1943-03-26 | 1945-11-05 | Automatic switching system applicable to telephony |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5870/51A Expired GB668360A (en) | 1943-03-26 | 1945-11-05 | Automatic switching system applicable to telephony |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH248119A (enrdf_load_stackoverflow) |
FR (1) | FR896466A (enrdf_load_stackoverflow) |
GB (2) | GB668261A (enrdf_load_stackoverflow) |
NL (2) | NL94178C (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947891C (de) * | 1954-02-23 | 1956-08-23 | Siemens Ag | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb |
-
0
- NL NL66178D patent/NL66178C/xx active
- NL NL94178D patent/NL94178C/xx active
-
1943
- 1943-03-26 FR FR896466D patent/FR896466A/fr not_active Expired
-
1944
- 1944-03-31 CH CH248119D patent/CH248119A/fr unknown
-
1945
- 1945-11-05 GB GB29292/45A patent/GB668261A/en not_active Expired
- 1945-11-05 GB GB5870/51A patent/GB668360A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH248119A (fr) | 1947-04-15 |
NL94178C (enrdf_load_stackoverflow) | |
NL66178C (enrdf_load_stackoverflow) | |
FR896466A (fr) | 1945-02-22 |
GB668360A (en) | 1952-03-12 |
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