TRADING SYSTEM OF LANGUAGE INSTRUCTION SERVICE,申请号KR20040034516-传众专利搜索

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发明名称	TRADING SYSTEM OF LANGUAGE INSTRUCTION SERVICE
摘要
申请公布号	KR20050109339(A)	申请公布日期	2005.11.21
申请号	KR20040034516	申请日期	2004.05.15
申请人	HAN, CHOONG HEE	发明人	HAN, CHOONG HEE
分类号	(IPC1-7):G06F17/60	主分类号	(IPC1-7):G06F17/60
代理机构		代理人
主权项
地址

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