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发明名称
Data service system of network for digital television
摘要
申请公布号
KR100712696(B1)
申请公布日期
2007.05.02
申请号
KR20040085814
申请日期
2004.10.26
申请人
发明人
分类号
H04N21/2343
主分类号
H04N21/2343
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代理人
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