Vest drafting slide rule,申请号US19510237249-传众专利搜索

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发明名称	Vest drafting slide rule
摘要
申请公布号	US2826815(A)	申请公布日期	1958.03.18
申请号	US19510237249	申请日期	1951.07.17
申请人	KOLTHOFF AAGE T;LOUIS TAYLOR HUBERT	发明人	KOLTHOFF AAGE T.;TAYLOR HUBERT LOUIS
分类号	A41H3/00	主分类号	A41H3/00
代理机构		代理人
主权项
地址

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