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发明名称
METHOD FOR INTERMEDIATION GOODS OF USING DIGITAL BOOKS
摘要
申请公布号
KR100914769(B1)
申请公布日期
2009.09.01
申请号
KR20070045850
申请日期
2007.05.11
申请人
发明人
分类号
G06Q30/06;G06Q30/02
主分类号
G06Q30/06
代理机构
代理人
主权项
地址
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