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发明名称
System for controlling the distribution and use of digital works
摘要
申请公布号
EP1338941(A1)
申请公布日期
2003.08.27
申请号
EP20030008710
申请日期
1995.11.23
申请人
CONTENTGUARD HOLDINGS, INC.
发明人
STEFIK, MARK J.;CASEY, MICHALENE M.
分类号
G06F12/00;G06F1/00;G06F21/00;G06F21/24;G06Q30/00;G06Q50/00;G09C1/00;H04L9/32;H04L12/14;H04L29/06;(IPC1-7):G06F1/00
主分类号
G06F12/00
代理机构
代理人
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