FR422937A - Telephone system - Google Patents
Telephone systemInfo
- Publication number
- FR422937A FR422937A FR422937DA FR422937A FR 422937 A FR422937 A FR 422937A FR 422937D A FR422937D A FR 422937DA FR 422937 A FR422937 A FR 422937A
- Authority
- FR
- France
- Prior art keywords
- telephone system
- telephone
- Prior art date
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR422937T | 1910-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR422937A true FR422937A (en) | 1911-04-03 |
Family
ID=43350388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR422937D Expired FR422937A (en) | 1910-08-31 | 1910-08-31 | Telephone system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR422937A (en) |
-
1910
- 1910-08-31 FR FR422937D patent/FR422937A/en not_active Expired
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