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经营范围
发明名称
Educational toy having function of managing memory
摘要
申请公布号
KR100701290(B1)
申请公布日期
2007.03.29
申请号
KR20050043781
申请日期
2005.05.24
申请人
发明人
分类号
G09B5/06
主分类号
G09B5/06
代理机构
代理人
主权项
地址
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