BE380454A - - Google Patents
Info
- Publication number
- BE380454A BE380454A BE380454DA BE380454A BE 380454 A BE380454 A BE 380454A BE 380454D A BE380454D A BE 380454DA BE 380454 A BE380454 A BE 380454A
- 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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR371664X | 1930-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380454A true BE380454A (xx) |
Family
ID=8894717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380454D BE380454A (xx) | 1930-07-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE380454A (xx) |
| FR (1) | FR714251A (xx) |
| GB (1) | GB371664A (xx) |
-
0
- FR FR714251D patent/FR714251A/fr not_active Expired
- BE BE380454D patent/BE380454A/xx unknown
-
1931
- 1931-06-09 GB GB16825/31A patent/GB371664A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB371664A (en) | 1932-04-28 |
| FR714251A (xx) | 1931-11-19 |