Slide rule for solving equations,申请号US19630283172-传众专利搜索

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发明名称	Slide rule for solving equations
摘要
申请公布号	US3130905(A)	申请公布日期	1964.04.28
申请号	US19630283172	申请日期	1963.05.27
申请人	HAO HSIAO KUANG	发明人	HSIAO KUANG HAO
分类号	G06G1/02	主分类号	G06G1/02
代理机构		代理人
主权项
地址

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