FR424849A - Poste téléphonique - Google Patents
Poste téléphoniqueInfo
- Publication number
- FR424849A FR424849A FR424849DA FR424849A FR 424849 A FR424849 A FR 424849A FR 424849D A FR424849D A FR 424849DA FR 424849 A FR424849 A FR 424849A
- Authority
- FR
- France
- Prior art keywords
- phone booth
- booth
- phone
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR424849T | 1911-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR424849A true FR424849A (fr) | 1911-05-24 |
Family
ID=1467560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR424849D Expired FR424849A (fr) | 1911-01-13 | 1911-01-13 | Poste téléphonique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR424849A (fr) |
-
1911
- 1911-01-13 FR FR424849D patent/FR424849A/fr not_active Expired
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