FR538441A - - Google Patents
Info
- Publication number
- FR538441A FR538441A FR538441DA FR538441A FR 538441 A FR538441 A FR 538441A FR 538441D A FR538441D A FR 538441DA FR 538441 A FR538441 A FR 538441A
- 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
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR538441A true FR538441A (en, 2012) | 1922-06-09 |
Family
ID=1537419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR538441D Expired FR538441A (en, 2012) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR538441A (en, 2012) |
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0
- FR FR538441D patent/FR538441A/fr not_active Expired