Electro-acoustic transducer

An electro-acoustic transducer includes a housing (202) enclosing an electro-acoustic transducer device (201) and having an opening (202a) through which the diaphragm side of the transducer device (201) is exposed to the outside. A ring (209) is provided at and permanently fixed to the outer surface...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YOSHIYUKI KAMON, MAKOTO YAMAGISHI, MASAHIKO ISO
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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