Method and apparatus for solving mathematical problems,申请号US19480021215-传众专利搜索

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发明名称	Method and apparatus for solving mathematical problems
摘要
申请公布号	US2515888(A)	申请公布日期	1950.07.18
申请号	US19480021215	申请日期	1948.04.15
申请人	MURRAY FRANCIS J	发明人	MURRAY FRANCIS J.
分类号	G06G7/34	主分类号	G06G7/34
代理机构		代理人
主权项
地址

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