LOUDSPEAKER

PROBLEM TO BE SOLVED: To provide a compact, high-quality speaker that is used for each mobile unit communication equipment kind and inhibits distortion and abnormal sounds. SOLUTION: In the loudspeaker, a second sound hole 10a of a protector 10 that is fitted to a frame 2 of the loudspeaker is provi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHIMOKAWATOKO TAKESHI, KUBO KAZUTAKA
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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