Electro-acoustic transducer,申请号GB19650000063-传众专利搜索

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发明名称	Electro-acoustic transducer
摘要
申请公布号	GB1022850(A)	申请公布日期	1966.03.16
申请号	GB19650000063	申请日期	1965.01.01
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H04R1/22;H04R9/02;H04R9/10	主分类号	H04R1/22
代理机构		代理人
主权项
地址

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