Radio selector drive,申请号US19310523763-传众专利搜索

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发明名称	Radio selector drive
摘要
申请公布号	US1979416(A)	申请公布日期	1934.11.06
申请号	US19310523763	申请日期	1931.03.19
申请人	RADIO CORPORATION OF AMERICA	发明人	SPANGLER FRANK
分类号	H03J1/14	主分类号	H03J1/14
代理机构		代理人
主权项
地址

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