Mobile device for electronical studying and Electronical studying method using that,申请号KR20080075798-传众专利搜索

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发明名称	Mobile device for electronical studying and Electronical studying method using that
摘要
申请公布号	KR101012459(B1)	申请公布日期	2011.02.08
申请号	KR20080075798	申请日期	2008.08.01
申请人		发明人
分类号	G06Q50/20;G06F3/033;G09B7/00	主分类号	G06Q50/20
代理机构		代理人
主权项
地址

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