SPEAKER

PURPOSE:To omit a packing for sealing and lower manufacturing cost by forming the outer periphery of the edge of a speaker unit thick with forming material, and bringing the part into close contact with a part of cabinet. CONSTITUTION:The edge 1 formed in a body by a foaming material is fixed to a f...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YOSHIKAWA AKIRA, TANAKA SHIYOUJI
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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