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PATHE MARCONI IND MUSIC
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PATHE MARCONI IND MUSIC
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Publication of ES218309A1publicationCriticalpatent/ES218309A1/en
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups
(AREA)
Diaphragms For Electromechanical Transducers
(AREA)
Abstract
An electrostatic loudspeaker comprising a fixed metallic armature on which a dielectric membrane carrying the moving metal armature is tensioned, characterized in that the vibrating assembly is constituted by a sheet of paper-based substance, metallized on one of its faces. (Machine-translation by Google Translate, not legally binding)
ES0218309A1954-05-101954-11-09An electrostatic speaker (Machine-translation by Google Translate, not legally binding)
ExpiredES218309A1
(en)
Improvements in microphones, particularly for duplex installations with speakers and microphone (Machine-translation by Google Translate, not legally binding)