FR1012558A - - Google Patents
Info
- Publication number
- FR1012558A FR1012558A FR1012558DA FR1012558A FR 1012558 A FR1012558 A FR 1012558A FR 1012558D A FR1012558D A FR 1012558DA FR 1012558 A FR1012558 A FR 1012558A
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1012558A true FR1012558A (de) | 1952-07-23 |
Family
ID=1567439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1012558D Expired FR1012558A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1012558A (de) |
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0
- FR FR1012558D patent/FR1012558A/fr not_active Expired