BE464850A - - Google Patents
Info
- Publication number
- BE464850A BE464850A BE464850DA BE464850A BE 464850 A BE464850 A BE 464850A BE 464850D A BE464850D A BE 464850DA BE 464850 A BE464850 A BE 464850A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US541742XA | 1939-08-14 | 1939-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE464850A true BE464850A (ja�@�@) |
Family
ID=21989229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE464850D BE464850A (ja�@�@) | 1939-08-14 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE464850A (ja�@�@) |
| FR (1) | FR930242A (ja�@�@) |
| GB (1) | GB541742A (ja�@�@) |
-
0
- BE BE464850D patent/BE464850A/xx unknown
-
1940
- 1940-07-31 GB GB12370/40A patent/GB541742A/en not_active Expired
-
1946
- 1946-07-04 FR FR930242D patent/FR930242A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR930242A (fr) | 1948-01-20 |
| GB541742A (en) | 1941-12-09 |