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发明名称
DATA DISTRIBUTING SYSTEM AND DATA SELLING APPARATUS THEREFOR, DATA RETRIEVING APPARATUS, DUPLICATED DATA DETECTING SYSTEM, AND DATA REPRODUCING APPARATUS
摘要
申请公布号
KR20010034683(A)
申请公布日期
2001.04.25
申请号
KR1020007010654
申请日期
2000.09.26
申请人
发明人
分类号
G06Q99/00
主分类号
G06Q99/00
代理机构
代理人
主权项
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