Selective control mechanism for radio sets,申请号US19330694980-传众专利搜索

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发明名称	Selective control mechanism for radio sets
摘要
申请公布号	US2107472(A)	申请公布日期	1938.02.08
申请号	US19330694980	申请日期	1933.10.24
申请人	ALVINA M. DENISON	发明人
分类号	G04C23/00	主分类号	G04C23/00
代理机构		代理人
主权项
地址

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