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发明名称
Improvements in or relating to collapsible advertising or display devices
摘要
申请公布号
GB378430(A)
申请公布日期
1932.08.09
申请号
GB19310013807
申请日期
1931.05.09
申请人
ERNEST WARDLE;HERBERT JONES
发明人
分类号
G09F1/08
主分类号
G09F1/08
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代理人
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