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.)
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AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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Filing date
Publication date
Application filed by Allgemeine Elektricitaets Gesellschaft, AEG AGfiledCriticalAllgemeine Elektricitaets Gesellschaft
Application grantedgrantedCritical
Publication of FR698063ApublicationCriticalpatent/FR698063A/fr
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
(AREA)
Multimedia
(AREA)
Physics & Mathematics
(AREA)
Acoustics & Sound
(AREA)
Signal Processing
(AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups
(AREA)
FR698063D1929-07-181930-06-25Perfectionnements aux membranes destinées à l'enregistrement et à la reproduction des oscillations acoustiques
ExpiredFR698063A
(fr)
Perfectionnements aux dispositifs électromagnétiques pour la traduction des vibrations, particuliè rement applicables à l'enregistrement et à la reproduction des sons