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发明名称
Improvements in or relating to a display apparatus for advertising or like purposes
摘要
申请公布号
GB728872(A)
申请公布日期
1955.04.27
申请号
GB19530013825
申请日期
1953.05.18
申请人
ARTHUR RAYON GARBEN
发明人
分类号
G09F11/23
主分类号
G09F11/23
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代理人
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