DATA ENTRY DEVICE,申请号GB19740002093-传众专利搜索

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发明名称	DATA ENTRY DEVICE
摘要
申请公布号	GB1475886(A)	申请公布日期	1977.06.10
申请号	GB19740002093	申请日期	1975.01.14
申请人	DEFENCE SEC OF STATE FOR	发明人
分类号	G06F3/02;G06F3/023;G09G3/14;H01H13/84;(IPC1-7):H03K13/00	主分类号	G06F3/02
代理机构		代理人
主权项
地址

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