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发明名称
OMOK GAME TYPE MATHEMATICAL OPERATION LEARNING AND TEACHING TOOL
摘要
申请公布号
KR20120002049(U)
申请公布日期
2012.03.20
申请号
KR20100009557U
申请日期
2010.09.10
申请人
发明人
分类号
G09B23/02;G09B1/08;G09B19/22
主分类号
G09B23/02
代理机构
代理人
主权项
地址
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