Ten-keys key board for calculating machines,申请号US19560564811-传众专利搜索

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发明名称	Ten-keys key board for calculating machines
摘要
申请公布号	US2945622(A)	申请公布日期	1960.07.19
申请号	US19560564811	申请日期	1956.02.10
申请人	PRECISIA A. G.	发明人	HEINZE WERNER;JULICH WERNER
分类号	G06C7/08	主分类号	G06C7/08
代理机构		代理人
主权项
地址

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