Radio direction finding means for aviation trainers,申请号US19440540977-传众专利搜索

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发明名称	Radio direction finding means for aviation trainers
摘要
申请公布号	US2450240(A)	申请公布日期	1948.09.28
申请号	US19440540977	申请日期	1944.06.19
申请人	LINK AVIATION, INC.	发明人	KAIL KARL A.
分类号	G09B9/26	主分类号	G09B9/26
代理机构		代理人
主权项
地址

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