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发明名称
LEARNING SERVICES PROVIDING METHOD AND SYSTEM
摘要
申请公布号
KR101182629(B1)
申请公布日期
2012.09.14
申请号
KR20110001266
申请日期
2011.01.06
申请人
发明人
分类号
G06Q50/20;G06K9/18
主分类号
G06Q50/20
代理机构
代理人
主权项
地址
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