BE503645A - - Google Patents
Info
- Publication number
- BE503645A BE503645A BE503645DA BE503645A BE 503645 A BE503645 A BE 503645A BE 503645D A BE503645D A BE 503645DA BE 503645 A BE503645 A BE 503645A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- digit
- control
- switches
- conversation
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1353650A GB744123A (en) | 1950-05-31 | 1950-05-31 | Improvements in or relating to telecommunication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE503645A true BE503645A (xx) |
Family
ID=10024752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE503645D BE503645A (xx) | 1950-05-31 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE503645A (xx) |
| GB (1) | GB744123A (xx) |
-
0
- BE BE503645D patent/BE503645A/fr unknown
-
1950
- 1950-05-31 GB GB1353650A patent/GB744123A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB744123A (en) | 1956-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE503645A (xx) | ||
| BE351277A (xx) | ||
| CH364533A (fr) | Installation de téléphonie automatique | |
| BE468639A (xx) | ||
| BE536895A (xx) | ||
| BE350916A (xx) | ||
| BE361469A (xx) | ||
| BE359702A (xx) | ||
| CH120111A (fr) | Installation téléphonique. | |
| BE473140A (xx) | ||
| CH395203A (de) | Dispositif de concentration de lignes téléphoniques ou analogues | |
| BE432949A (xx) | ||
| BE428087A (xx) | ||
| BE341578A (xx) | ||
| BE344462A (xx) | ||
| CH238064A (fr) | Installation téléphonique. | |
| BE476274A (xx) | ||
| BE369046A (xx) | ||
| BE481276A (xx) | ||
| CH95919A (fr) | Installation pour bureau central téléphonique. | |
| BE481263A (xx) | ||
| BE407792A (xx) | ||
| BE367844A (xx) | ||
| BE341574A (xx) | ||
| BE476206A (xx) |