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发明名称
Advertising display device
摘要
申请公布号
US2080466(A)
申请公布日期
1937.05.18
申请号
US19340756602
申请日期
1934.12.08
申请人
THE HOOVER COMPANY
发明人
EVERETT RICHARD E.
分类号
G09F19/10
主分类号
G09F19/10
代理机构
代理人
主权项
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