FR648477A - Haut-parleur - Google Patents
Haut-parleurInfo
- Publication number
- FR648477A FR648477A FR648477DA FR648477A FR 648477 A FR648477 A FR 648477A FR 648477D A FR648477D A FR 648477DA FR 648477 A FR648477 A FR 648477A
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR648477T | 1928-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR648477A true FR648477A (fr) | 1928-12-10 |
Family
ID=9002728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR648477D Expired FR648477A (fr) | 1928-02-07 | 1928-02-07 | Haut-parleur |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR648477A (fr) |
-
1928
- 1928-02-07 FR FR648477D patent/FR648477A/fr not_active Expired
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