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发明名称
Improvements in or relating to advertising devices
摘要
申请公布号
GB771658(A)
申请公布日期
1957.04.03
申请号
GB19550027673
申请日期
1955.09.28
申请人
VINCENZO CALABRESE
发明人
分类号
A24F19/10;G09F23/02
主分类号
A24F19/10
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代理人
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