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发明名称
Improvements in or relating to advertising or display devices
摘要
申请公布号
GB389659(A)
申请公布日期
1933.03.23
申请号
GB19320010690
申请日期
1932.04.14
申请人
ERNEST WARDLE;HERBERT JONES
发明人
分类号
G09F1/06
主分类号
G09F1/06
代理机构
代理人
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