FR670759A - Diffuseur pour t.s.f. et autres applications - Google Patents
Diffuseur pour t.s.f. et autres applicationsInfo
- Publication number
- FR670759A FR670759A FR670759DA FR670759A FR 670759 A FR670759 A FR 670759A FR 670759D A FR670759D A FR 670759DA FR 670759 A FR670759 A FR 670759A
- Authority
- FR
- France
- Prior art keywords
- diffuser
- applications
- 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 |
---|---|---|---|
FR670759T | 1929-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR670759A true FR670759A (fr) | 1929-12-04 |
Family
ID=9016547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR670759D Expired FR670759A (fr) | 1929-03-04 | 1929-03-04 | Diffuseur pour t.s.f. et autres applications |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR670759A (fr) |
-
1929
- 1929-03-04 FR FR670759D patent/FR670759A/fr not_active Expired
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