Optical apparatus for flight trainers,申请号US19480018887-传众专利搜索

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发明名称	Optical apparatus for flight trainers
摘要
申请公布号	US2518419(A)	申请公布日期	1950.08.08
申请号	US19480018887	申请日期	1948.04.05
申请人	CARL DEHMEL RICHARD	发明人	DEHMEL RICHARD CARL
分类号	G01B9/02;G09B9/30	主分类号	G01B9/02
代理机构		代理人
主权项
地址

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