FR862412A - Cellule phono-électrique - Google Patents
Cellule phono-électriqueInfo
- Publication number
- FR862412A FR862412A FR862412DA FR862412A FR 862412 A FR862412 A FR 862412A FR 862412D A FR862412D A FR 862412DA FR 862412 A FR862412 A FR 862412A
- Authority
- FR
- France
- Prior art keywords
- phono
- electric cell
- cell
- electric
- 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
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 |
|---|---|---|---|
| TN862412X | 1938-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR862412A true FR862412A (fr) | 1941-03-06 |
Family
ID=21618138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR862412D Expired FR862412A (fr) | 1938-12-19 | 1939-12-19 | Cellule phono-électrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR862412A (fr) |
-
1939
- 1939-12-19 FR FR862412D patent/FR862412A/fr not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR839929A (fr) | Stylographe | |
| FR862412A (fr) | Cellule phono-électrique | |
| FR847765A (fr) | Cellule piézo-électrique | |
| FR858191A (fr) | Cellule photo-électrique | |
| FR49532E (fr) | Thoracoscope | |
| FR839100A (fr) | Cannetière | |
| FR835597A (fr) | Aéro-calorifère | |
| FR836649A (fr) | Cribleur-laveur | |
| FI20997A (fi) | Självbrännande elektrod | |
| FR842531A (fr) | Rodoir | |
| FR843406A (fr) | Gazogène-épurateur | |
| FR855457A (fr) | Cantre | |
| FR834472A (fr) | Inverseur-réducteur | |
| FR841305A (fr) | Tissu-fourrure | |
| FI19468A (fi) | Metalltub | |
| FI19855A (fi) | Bränslepump | |
| ES144804A1 (es) | Aero-senalador | |
| FI19185A (fi) | Limämne | |
| FI19241A (fi) | Suksiside | |
| FI19249A (fi) | Snöplogvinge | |
| FI19274A (fi) | Suksiside | |
| FI19302A (fi) | Vätsketät behållare | |
| FI19384A (fi) | Kylapparat | |
| FI19465A (fi) | Träfiberplatta | |
| FI22349A (fi) | Austenitiskt stål |