BE493565A - - Google Patents
Info
- Publication number
- BE493565A BE493565A BE493565DA BE493565A BE 493565 A BE493565 A BE 493565A BE 493565D A BE493565D A BE 493565DA BE 493565 A BE493565 A BE 493565A
- Authority
- BE
- Belgium
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)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB304049A GB665129A (en) | 1949-02-03 | 1949-02-03 | Improvements in or relating to telecommunication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493565A true BE493565A (enrdf_load_stackoverflow) |
Family
ID=9750803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493565D BE493565A (enrdf_load_stackoverflow) | 1949-02-03 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE493565A (enrdf_load_stackoverflow) |
| DE (1) | DE838620C (enrdf_load_stackoverflow) |
| FR (1) | FR1013586A (enrdf_load_stackoverflow) |
| GB (1) | GB665129A (enrdf_load_stackoverflow) |
-
0
- BE BE493565D patent/BE493565A/xx unknown
-
1949
- 1949-02-03 GB GB304049A patent/GB665129A/en not_active Expired
-
1950
- 1950-01-29 DE DEM1683A patent/DE838620C/de not_active Expired
- 1950-02-02 FR FR1013586D patent/FR1013586A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB665129A (en) | 1952-01-16 |
| FR1013586A (fr) | 1952-07-30 |
| DE838620C (de) | 1952-05-12 |