RESEAU DE MICROPHONES A DIAGRAMME DIRECTIONNEL,申请号FR19800026672-传众专利搜索

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发明名称	RESEAU DE MICROPHONES A DIAGRAMME DIRECTIONNEL
摘要
申请公布号	FR2472326(B1)	申请公布日期	1987.03.20
申请号	FR19800026672	申请日期	1980.12.16
申请人	WESTERN ELECTRIC CY INC	发明人	ROBERT LEE WALLACE JR.
分类号	B06B1/08;H04R1/40;H04R3/00;(IPC1-7):H04R27/00	主分类号	B06B1/08
代理机构		代理人
主权项
地址

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