УЧЕБНЫЙ ПРИБОР ПО МАТЕМАТИКЕ,申请号RU20040115976U-传众专利搜索

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发明名称	УЧЕБНЫЙ ПРИБОР ПО МАТЕМАТИКЕ
摘要
申请公布号	RU41178(U1)	申请公布日期	2004.10.10
申请号	RU20040115976U	申请日期	2004.05.31
申请人		发明人
分类号	G09B23/04;(IPC1-7):G09B23/04	主分类号	G09B23/04
代理机构		代理人
主权项
地址

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