FR616639A - Haut-parleur - Google Patents
Haut-parleurInfo
- Publication number
- FR616639A FR616639A FR616639DA FR616639A FR 616639 A FR616639 A FR 616639A FR 616639D A FR616639D A FR 616639DA FR 616639 A FR616639 A FR 616639A
- Authority
- FR
- France
- Prior art keywords
- loud speaker
- loud
- speaker
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US263479XA | 1925-12-22 | 1925-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR616639A true FR616639A (fr) | 1927-02-05 |
Family
ID=21831301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR616639D Expired FR616639A (fr) | 1925-12-22 | 1926-05-25 | Haut-parleur |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR616639A (fr) |
GB (1) | GB263479A (fr) |
-
1926
- 1926-04-13 GB GB9734/26A patent/GB263479A/en not_active Expired
- 1926-05-25 FR FR616639D patent/FR616639A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB263479A (en) | 1927-09-13 |
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