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经营范围
发明名称
AUDIENCE SAMPLING SYSTEM
摘要
申请公布号
GB1209343(A)
申请公布日期
1970.10.21
申请号
GB19680001277
申请日期
1968.01.09
申请人
TELEVISION AUDIT CORPORATION INC.
发明人
分类号
H04H60/43
主分类号
H04H60/43
代理机构
代理人
主权项
地址
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