Automatic tuning device for radioreceivers,申请号US19330682640-传众专利搜索

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发明名称	Automatic tuning device for radioreceivers
摘要
申请公布号	US1972921(A)	申请公布日期	1934.09.11
申请号	US19330682640	申请日期	1933.07.28
申请人	DODDS RALPH J	发明人	DODDS RALPH J.
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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