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发明名称
CONTENT DISTRIBUTION/PROTECING METHOD AND APPARATUS
摘要
申请公布号
KR20020089472(A)
申请公布日期
2002.11.29
申请号
KR1020027013817
申请日期
2002.10.15
申请人
发明人
分类号
H04N7/167
主分类号
H04N7/167
代理机构
代理人
主权项
地址
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