HK28777A - Improvements in switching networks for telecommunications exhanges - Google Patents
Improvements in switching networks for telecommunications exhangesInfo
- Publication number
- HK28777A HK28777A HK287/77A HK28777A HK28777A HK 28777 A HK28777 A HK 28777A HK 287/77 A HK287/77 A HK 287/77A HK 28777 A HK28777 A HK 28777A HK 28777 A HK28777 A HK 28777A
- Authority
- HK
- Hong Kong
- Prior art keywords
- exhanges
- telecommunications
- switching networks
- networks
- switching
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1831074A GB1433648A (en) | 1974-04-26 | 1974-04-26 | Switching networks for telecommunications exchanges |
Publications (1)
Publication Number | Publication Date |
---|---|
HK28777A true HK28777A (en) | 1977-06-17 |
Family
ID=10110300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK287/77A HK28777A (en) | 1974-04-26 | 1977-06-09 | Improvements in switching networks for telecommunications exhanges |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR2269262B1 (en) |
GB (1) | GB1433648A (en) |
HK (1) | HK28777A (en) |
ZA (1) | ZA752336B (en) |
-
1974
- 1974-04-26 GB GB1831074A patent/GB1433648A/en not_active Expired
-
1975
- 1975-04-11 ZA ZA00752336A patent/ZA752336B/en unknown
- 1975-04-25 FR FR7512939A patent/FR2269262B1/fr not_active Expired
-
1977
- 1977-06-09 HK HK287/77A patent/HK28777A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1433648A (en) | 1976-04-28 |
ZA752336B (en) | 1976-03-31 |
FR2269262A1 (en) | 1975-11-21 |
FR2269262B1 (en) | 1982-03-26 |
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