FR579762A - Amplificateur de sons - Google Patents
Amplificateur de sonsInfo
- Publication number
- FR579762A FR579762A FR579762DA FR579762A FR 579762 A FR579762 A FR 579762A FR 579762D A FR579762D A FR 579762DA FR 579762 A FR579762 A FR 579762A
- Authority
- FR
- France
- Prior art keywords
- sound amplifier
- amplifier
- sound
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR579762T | 1924-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR579762A true FR579762A (fr) | 1924-10-23 |
Family
ID=8956355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR579762D Expired FR579762A (fr) | 1924-04-03 | 1924-04-03 | Amplificateur de sons |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR579762A (fr) |
-
1924
- 1924-04-03 FR FR579762D patent/FR579762A/fr not_active Expired
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