BE440574A - - Google Patents
Info
- Publication number
- BE440574A BE440574A BE440574DA BE440574A BE 440574 A BE440574 A BE 440574A BE 440574D A BE440574D A BE 440574DA BE 440574 A BE440574 A BE 440574A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
-
- 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)
- Relay Circuits (AREA)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB274629X | 1939-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440574A true BE440574A (xx) |
Family
ID=10259990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440574D BE440574A (xx) | 1939-06-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE440574A (xx) |
| CH (1) | CH274629A (xx) |
| FR (1) | FR867216A (xx) |
| GB (1) | GB534459A (xx) |
-
0
- BE BE440574D patent/BE440574A/xx unknown
-
1939
- 1939-06-30 GB GB19117/39A patent/GB534459A/en not_active Expired
-
1940
- 1940-09-17 FR FR867216D patent/FR867216A/fr not_active Expired
-
1947
- 1947-09-27 CH CH274629D patent/CH274629A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB534459A (en) | 1941-03-07 |
| FR867216A (fr) | 1941-10-07 |
| CH274629A (de) | 1951-04-15 |