Radio echo ranging and direction finding system,申请号US19450628952-传众专利搜索

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发明名称	Radio echo ranging and direction finding system
摘要
申请公布号	US2874379(A)	申请公布日期	1959.02.17
申请号	US19450628952	申请日期	1945.11.15
申请人	PAGE ROBERT M	发明人	PAGE ROBERT M.
分类号	G01S1/02;G01S13/02;G01S13/22;G01S19/24;G01S19/25;G01S19/40;G01S19/46;G01S19/48;G01S19/49	主分类号	G01S1/02
代理机构		代理人
主权项
地址

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