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发明名称	STUDY SKILL MASTER -BOOK AND LEARNING
摘要
申请公布号	KR20050060047(A)	申请公布日期	2005.06.21
申请号	KR20050045376	申请日期	2005.05.30
申请人	LEEM, YOUNG SOO	发明人	LEEM, YOUNG SOO
分类号	G09B19/08;B42D1/00;G09B19/00	主分类号	G09B19/08
代理机构		代理人
主权项
地址

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