a magnetic block used Education of children,申请号KR20080070951-传众专利搜索

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发明名称	a magnetic block used Education of children
摘要
申请公布号	KR101019327(B1)	申请公布日期	2011.03.07
申请号	KR20080070951	申请日期	2008.07.22
申请人		发明人
分类号	G09B1/08;G09B1/04	主分类号	G09B1/08
代理机构		代理人
主权项
地址

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