Sky lookout support,申请号US19520299047-传众专利搜索

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发明名称	Sky lookout support
摘要
申请公布号	US2669784(A)	申请公布日期	1954.02.23
申请号	US19520299047	申请日期	1952.07.15
申请人	LEWIS JR DONALD A	发明人	JR. DONALD A. LEWIS,
分类号	G01C1/02;G02B23/16	主分类号	G01C1/02
代理机构		代理人
主权项
地址

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