Self-correcting examination sheet,申请号US19640395123-传众专利搜索

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发明名称	Self-correcting examination sheet
摘要
申请公布号	US3283416(A)	申请公布日期	1966.11.08
申请号	US19640395123	申请日期	1964.09.09
申请人	TAYLOR THOMAS P;SNIVELY LAURENCE H	发明人	TAYLOR THOMAS P.;SNIVELY LAURENCE H.
分类号	G09B3/08	主分类号	G09B3/08
代理机构		代理人
主权项
地址

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