Improvements in electric connecting means between a microphone and its associated amplifier,申请号GB19320009922-传众专利搜索

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发明名称	Improvements in electric connecting means between a microphone and its associated amplifier
摘要
申请公布号	GB375251(A)	申请公布日期	1932.06.23
申请号	GB19320009922	申请日期	1931.09.29
申请人	ELECTRICAL RESEARCH PRODUCTS INC.	发明人
分类号	H04M1/04	主分类号	H04M1/04
代理机构		代理人
主权项
地址

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