Improvements in or relating to transducers

851,503. Microphones. STANDARD TELEPHONES & CABLES Ltd. Jan. 9, 1959 [Jan. 16, 1958], No. 1526/58. Class 40 (4). In a microphone in which an enclosed space behind the diaphragm is connected to the outside of the microphone casing by a resonance control tube, the tube also serves as a conduit for...

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Bibliographische Detailangaben

Hauptverfasser:	ROBERTON JAMES SAMUEL PATERSON, DYMOKE-BRADSHAW LESLIE EUGENE BASIL
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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