DEVICE FOR MECHANICALLY ASSISTING CALCULATION,申请号GB19740002735-传众专利搜索

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发明名称	DEVICE FOR MECHANICALLY ASSISTING CALCULATION
摘要
申请公布号	GB1495521(A)	申请公布日期	1977.12.21
申请号	GB19740002735	申请日期	1975.01.21
申请人	BRITISH STEEL CORP	发明人
分类号	G06G1/00;(IPC1-7):G06G1/00	主分类号	G06G1/00
代理机构		代理人
主权项
地址

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