Apparatus for determining the frequency difference of two signals by comparison of differentiated and un-differentiated beat signals,申请号US19630331197-传众专利搜索

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发明名称	Apparatus for determining the frequency difference of two signals by comparison of differentiated and un-differentiated beat signals
摘要
申请公布号	US3297946(A)	申请公布日期	1967.01.10
申请号	US19630331197	申请日期	1963.12.17
申请人	THE GENERAL ELECTRIC COMPANY, LIMITED	发明人	CLAY DAVID LANGSFORD
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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