Chart reading device,申请号US19470741398-传众专利搜索

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发明名称	Chart reading device
摘要
申请公布号	US2586430(A)	申请公布日期	1952.02.19
申请号	US19470741398	申请日期	1947.04.14
申请人	NORTH AMERICAN AVIATION, INC.	发明人	KELLER PHILIP B.
分类号	G06K11/00	主分类号	G06K11/00
代理机构		代理人
主权项
地址

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