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发明名称
Advertising sign
摘要
申请公布号
US2659170(A)
申请公布日期
1953.11.17
申请号
US19510240369
申请日期
1951.08.04
申请人
BURDICK-BARON COMPANY
发明人
HILL ELDON J.
分类号
G09F7/16
主分类号
G09F7/16
代理机构
代理人
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