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发明名称
METHOD AND APPARATUS FOR MANAGING DIGITAL CONTENT USAGE RIGHTS
摘要
申请公布号
EP1334431(A4)
申请公布日期
2004.09.01
申请号
EP20020701056
申请日期
2002.01.17
申请人
CONTENTGUARD HOLDINGS, INC.
发明人
LAO, GUILLERMO;JACOBS, RORY;NGUYEN, MAI;HAM, MANUEL;TIEU, VINCENT
分类号
G06Q50/00;G06F21/00;G06Q30/00;G09G5/00;(IPC1-7):G06F11/30
主分类号
G06Q50/00
代理机构
代理人
主权项
地址
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