Current magnitude-ratio responsive amplifier,申请号US19420469647-传众专利搜索

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发明名称	Current magnitude-ratio responsive amplifier
摘要
申请公布号	US2431396(A)	申请公布日期	1947.11.25
申请号	US19420469647	申请日期	1942.12.21
申请人	RADIO CORPORATION OF AMERICA	发明人	HANSELL CLARENCE W.
分类号	G01R27/12;G06G7/16	主分类号	G01R27/12
代理机构		代理人
主权项
地址

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