BE485422A - - Google Patents
Info
- Publication number
- BE485422A BE485422A BE485422DA BE485422A BE 485422 A BE485422 A BE 485422A BE 485422D A BE485422D A BE 485422DA BE 485422 A BE485422 A BE 485422A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR277491X | 1948-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE485422A true BE485422A (ja) |
Family
ID=8886465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE485422D BE485422A (ja) | 1948-04-06 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE485422A (ja) |
| CH (1) | CH277491A (ja) |
-
0
- BE BE485422D patent/BE485422A/xx unknown
-
1948
- 1948-10-20 CH CH277491D patent/CH277491A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH277491A (fr) | 1951-08-31 |