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发明名称
Improvements in or relating to audience reaction measuring systems
摘要
申请公布号
GB1044651(A)
申请公布日期
1966.10.05
申请号
GB19630009619
申请日期
1963.03.11
申请人
SCREEN GEMS INC.
发明人
分类号
G08B5/36;G09B5/00
主分类号
G08B5/36
代理机构
代理人
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