FR352457A - Diaphragme multiple pour phonographes, etc. - Google Patents
Diaphragme multiple pour phonographes, etc.Info
- Publication number
- FR352457A FR352457A FR352457DA FR352457A FR 352457 A FR352457 A FR 352457A FR 352457D A FR352457D A FR 352457DA FR 352457 A FR352457 A FR 352457A
- Authority
- FR
- France
- Prior art keywords
- phonographs
- multiple diaphragm
- diaphragm
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB352457X | 1904-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR352457A true FR352457A (fr) | 1905-08-11 |
Family
ID=1400693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR352457D Expired FR352457A (fr) | 1904-03-18 | 1905-03-17 | Diaphragme multiple pour phonographes, etc. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR352457A (fr) |
-
1905
- 1905-03-17 FR FR352457D patent/FR352457A/fr not_active Expired
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