Haut-parleur électro-statique

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Bibliographic Details
Main Author KLEIN SIEGFRIED
Format Patent
LanguageFrench
Published 20.09.1956
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Bibliography:Application Number: FRD1123333