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发明名称
An improved advertising device
摘要
申请公布号
GB336199(A)
申请公布日期
1930.10.06
申请号
GB19290017014
申请日期
1929.06.04
申请人
FRANK DEARNLEY
发明人
分类号
G09F7/22
主分类号
G09F7/22
代理机构
代理人
主权项
地址
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