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发明名称
Method of watermarking data
摘要
申请公布号
GB0118661(D0)
申请公布日期
2001.09.19
申请号
GB20010018661
申请日期
2001.07.31
申请人
HEWLETT-PACKARD COMPANY
发明人
分类号
H04H20/31
主分类号
H04H20/31
代理机构
代理人
主权项
地址
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