FR809478A - Haut-parleur perfectionné - Google Patents
Haut-parleur perfectionnéInfo
- Publication number
- FR809478A FR809478A FR809478DA FR809478A FR 809478 A FR809478 A FR 809478A FR 809478D A FR809478D A FR 809478DA FR 809478 A FR809478 A FR 809478A
- Authority
- FR
- France
- Prior art keywords
- advanced speaker
- speaker
- advanced
- 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
- H04R7/12—Non-planar diaphragms or 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 |
---|---|---|---|
FR809478T | 1935-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR809478A true FR809478A (fr) | 1937-03-03 |
Family
ID=9253551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR809478D Expired FR809478A (fr) | 1935-11-26 | 1935-11-26 | Haut-parleur perfectionné |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR809478A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768235A (en) * | 1950-07-14 | 1956-10-23 | Baldwin Piano Co | Reverberation devices |
-
1935
- 1935-11-26 FR FR809478D patent/FR809478A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768235A (en) * | 1950-07-14 | 1956-10-23 | Baldwin Piano Co | Reverberation devices |
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