Frequency measuring circuit,申请号US19420437260-传众专利搜索

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发明名称	Frequency measuring circuit
摘要
申请公布号	US2467777(A)	申请公布日期	1949.04.19
申请号	US19420437260	申请日期	1942.04.01
申请人	RADIO CORPORATION OF AMERICA	发明人	RAJCHMAN JAN A.;GOLDBERG EDWIN A.
分类号	G01R23/00	主分类号	G01R23/00
代理机构		代理人
主权项
地址

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