Optical projection and plotting table device for navigation data,申请号US19450588983-传众专利搜索

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发明名称	Optical projection and plotting table device for navigation data
摘要
申请公布号	US2478237(A)	申请公布日期	1949.08.09
申请号	US19450588983	申请日期	1945.04.18
申请人	CARSON ROBERT H	发明人	CARSON ROBERT H.
分类号	G01C21/22	主分类号	G01C21/22
代理机构		代理人
主权项
地址

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