Improvements in or relating to data storage devices,申请号GB19550009924-传众专利搜索

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发明名称	Improvements in or relating to data storage devices
摘要
申请公布号	GB784432(A)	申请公布日期	1957.10.09
申请号	GB19550009924	申请日期	1955.04.05
申请人	THE BRITISH TABULATING MACHINE COMPANY LIMITED	发明人	SPENCER ARTHUR JAMES
分类号	H03M9/00	主分类号	H03M9/00
代理机构		代理人
主权项
地址

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