File card system and cards therefor,申请号US19630328798-传众专利搜索

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发明名称	File card system and cards therefor
摘要
申请公布号	US3301263(A)	申请公布日期	1967.01.31
申请号	US19630328798	申请日期	1963.12.09
申请人	SPEES ARTHUR T	发明人	SPEES ARTHUR T.
分类号	B42F19/00	主分类号	B42F19/00
代理机构		代理人
主权项
地址

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