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经营范围
发明名称
METHOD FOR USER AUTHORIZATION ON SET-TOP BOX
摘要
申请公布号
KR20050087890(A)
申请公布日期
2005.09.01
申请号
KR20040013586
申请日期
2004.02.27
申请人
KT CORPORATION
发明人
PARK, HOON KYU;KIM, JIN HAN;KIM, HEE CHAN
分类号
H04N21/6334;(IPC1-7):H04N7/16
主分类号
H04N21/6334
代理机构
代理人
主权项
地址
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