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发明名称	An aspect of service
摘要
申请公布号	KR20090002428(U)	申请公布日期	2009.03.11
申请号	KR20070014875U	申请日期	2007.09.06
申请人		发明人
分类号	G09B19/06	主分类号	G09B19/06
代理机构		代理人
主权项
地址

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