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发明名称	SLIDE RULE
摘要
申请公布号	CA481293(A)	申请公布日期	1952.02.26
申请号	CAD481293	申请日期
申请人	BENEDICT DAVID KAHAN	发明人	BENEDICT DAVID KAHAN
分类号		主分类号
代理机构		代理人
主权项
地址

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