Data input system for calculator,申请号GB19790012971-传众专利搜索

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发明名称	Data input system for calculator
摘要
申请公布号	GB2025105(A)	申请公布日期	1980.01.16
申请号	GB19790012971	申请日期	1979.04.12
申请人	KITZ N	发明人
分类号	G06F15/02;G06K9/24;(IPC1-7):G06K9/00	主分类号	G06F15/02
代理机构		代理人
主权项
地址

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