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发明名称
Advertising device
摘要
申请公布号
US2210382(A)
申请公布日期
1940.08.06
申请号
US19370151607
申请日期
1937.07.02
申请人
RUFLE GEORGE H
发明人
RUFLE GEORGE H.
分类号
G09F13/28
主分类号
G09F13/28
代理机构
代理人
主权项
地址
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