Television audience data gathering,申请号GB19940021169-传众专利搜索

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发明名称	Television audience data gathering
摘要
申请公布号	GB9421169(D0)	申请公布日期	1994.12.07
申请号	GB19940021169	申请日期	1991.09.04
申请人	LE GROUPE VIDEOTRON LTEE	发明人
分类号	H04H60/45;H04N7/16;H04N7/173	主分类号	H04H60/45
代理机构		代理人
主权项
地址

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