Tabulating card perforating apparatus,申请号US19600034422-传众专利搜索

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发明名称	Tabulating card perforating apparatus
摘要
申请公布号	US3051079(A)	申请公布日期	1962.08.28
申请号	US19600034422	申请日期	1960.06.07
申请人	NATIONAL AUTOMATION CORP.	发明人	PLATZMAN MICHAEL M.;KEEFE LINCOLN M.
分类号		主分类号
代理机构		代理人
主权项
地址

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