COMPOSITION FOR ULTRASONIC TRANSDUCERS

Bibliographische Detailangaben

Hauptverfasser:	USHAKOV VALENTIN M,SU, SEMYKIN IGOR V,SU
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS TESTING
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