Improvements in or relating to record card punching machines,申请号GB19520025977-传众专利搜索

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发明名称	Improvements in or relating to record card punching machines
摘要
申请公布号	GB710928(A)	申请公布日期	1954.06.23
申请号	GB19520025977	申请日期	1952.10.16
申请人	MICHAEL MAUL	发明人
分类号	C12P19/24	主分类号	C12P19/24
代理机构		代理人
主权项
地址

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