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发明名称
WATERMARK DETECTION
摘要
申请公布号
KR20010012250(A)
申请公布日期
2001.02.15
申请号
KR1019997010201
申请日期
1999.11.04
申请人
发明人
分类号
H04N5/913
主分类号
H04N5/913
代理机构
代理人
主权项
地址
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