FR741117A - - Google Patents
Info
- Publication number
- FR741117A FR741117A FR741117DA FR741117A FR 741117 A FR741117 A FR 741117A FR 741117D A FR741117D A FR 741117DA FR 741117 A FR741117 A FR 741117A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741117A true FR741117A (ja) | 1933-02-04 |
Family
ID=1545693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741117D Expired FR741117A (ja) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR741117A (ja) |
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0
- FR FR741117D patent/FR741117A/fr not_active Expired