SPECTRUM-ANALYZING SYSTEM,申请号US19520280456-传众专利搜索

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发明名称	SPECTRUM-ANALYZING SYSTEM
摘要
申请公布号	US3617883(A)	申请公布日期	1971.11.02
申请号	US19520280456	申请日期	1952.04.04
申请人	HAZELTINE RESEARCH INC.	发明人	DONALD RICHMAN
分类号	H03J7/32;(IPC1-7):G01R23/14	主分类号	H03J7/32
代理机构		代理人
主权项
地址

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