Apparatus and its method of content contest service using bi-directional broadcasting service,申请号KR20050090131-传众专利搜索

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发明名称	Apparatus and its method of content contest service using bi-directional broadcasting service
摘要
申请公布号	KR100708998(B1)	申请公布日期	2007.04.18
申请号	KR20050090131	申请日期	2005.09.27
申请人		发明人
分类号	H04N21/25;H04N21/274	主分类号	H04N21/25
代理机构		代理人
主权项
地址

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