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发明名称
APPARATUS AND METHOD FOR RESTRICTING VIEWING
摘要
申请公布号
KR20090051871(A)
申请公布日期
2009.05.25
申请号
KR20070118306
申请日期
2007.11.20
申请人
LG ELECTRONICS INC.
发明人
ROH, SEUNG PHIL
分类号
H04N21/454;H04N21/441
主分类号
H04N21/454
代理机构
代理人
主权项
地址
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