Improvements in or relating to statistical record cards,申请号GB19500012518-传众专利搜索

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发明名称	Improvements in or relating to statistical record cards
摘要
申请公布号	GB686696(A)	申请公布日期	1953.01.28
申请号	GB19500012518	申请日期	1950.05.18
申请人	POWERS - SAMAS ACCOUNTING MACHINES LIMITED	发明人	THOMAS ARTHUR
分类号	G06K19/02	主分类号	G06K19/02
代理机构		代理人
主权项
地址

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