PUPIL EXAMINING DEVICE,申请号SU19772490186-传众专利搜索

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发明名称	PUPIL EXAMINING DEVICE
摘要
申请公布号	SU714465(A1)	申请公布日期	1980.02.05
申请号	SU19772490186	申请日期	1977.05.25
申请人	ERKIN ALEKSANDR M,SU	发明人	ERKIN ALEKSANDR M,SU
分类号	G09B7/00;(IPC1-7):G09B7/00	主分类号	G09B7/00
代理机构		代理人
主权项
地址

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