GB500848A - Telegraph exchange system - Google Patents
Telegraph exchange systemInfo
- Publication number
- GB500848A GB500848A GB14978/38A GB1497838A GB500848A GB 500848 A GB500848 A GB 500848A GB 14978/38 A GB14978/38 A GB 14978/38A GB 1497838 A GB1497838 A GB 1497838A GB 500848 A GB500848 A GB 500848A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- subscriber
- dial
- magnet
- retarded
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE204086X | 1937-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB500848A true GB500848A (en) | 1939-02-16 |
Family
ID=5780003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14978/38A Expired GB500848A (en) | 1937-05-19 | 1938-05-19 | Telegraph exchange system |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH204086A (enrdf_load_stackoverflow) |
FR (1) | FR838054A (enrdf_load_stackoverflow) |
GB (1) | GB500848A (enrdf_load_stackoverflow) |
NL (1) | NL50010C (enrdf_load_stackoverflow) |
-
0
- NL NL50010D patent/NL50010C/xx active
-
1938
- 1938-05-16 CH CH204086D patent/CH204086A/de unknown
- 1938-05-17 FR FR838054D patent/FR838054A/fr not_active Expired
- 1938-05-19 GB GB14978/38A patent/GB500848A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH204086A (de) | 1939-04-15 |
FR838054A (fr) | 1939-02-27 |
NL50010C (enrdf_load_stackoverflow) |
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