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发明名称
Method and System for Providing Multiple Language Learning Service Using Object Oriented Contents
摘要
申请公布号
KR100978685(B1)
申请公布日期
2010.08.30
申请号
KR20080014708
申请日期
2008.02.19
申请人
发明人
分类号
G06Q50/20;G09B19/06
主分类号
G06Q50/20
代理机构
代理人
主权项
地址
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