Radio tuning indicator device,申请号US19360087414-传众专利搜索

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发明名称	Radio tuning indicator device
摘要
申请公布号	US2120813(A)	申请公布日期	1938.06.14
申请号	US19360087414	申请日期	1936.06.26
申请人	SONORA RADIO, S. A.	发明人	RIOTTE ROGER
分类号	H03J1/02	主分类号	H03J1/02
代理机构		代理人
主权项
地址

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