FR592185A - Perfectionnements aux diaphragmes amplificateurs pour machines parlantes et aux amplificateurs pour téléphones haut-parleurs
- Google Patents
Perfectionnements aux diaphragmes amplificateurs pour machines parlantes et aux amplificateurs pour téléphones haut-parleurs
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Chanoit & Cie E
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Chanoit & Cie E
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H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
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Engineering & Computer Science
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Multimedia
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Physics & Mathematics
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Acoustics & Sound
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Signal Processing
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FR592185D1924-03-251924-03-25Perfectionnements aux diaphragmes amplificateurs pour machines parlantes et aux amplificateurs pour téléphones haut-parleurs
ExpiredFR592185A
(fr)