UNIDIRECTIONAL ELECTRET MICROPHONE,申请号GB19820008753-传众专利搜索

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发明名称	UNIDIRECTIONAL ELECTRET MICROPHONE
摘要
申请公布号	GB2095511(A)	申请公布日期	1982.09.29
申请号	GB19820008753	申请日期	1982.03.25
申请人	HOSIDEN ELECTRONICS CO LTD	发明人
分类号	H04R1/38;H04R19/00;H04R19/01;H04R19/04;(IPC1-7):H04R1/38	主分类号	H04R1/38
代理机构		代理人
主权项
地址

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