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发明名称
Advertising device
摘要
申请公布号
US1800764(A)
申请公布日期
1931.04.14
申请号
US19290401902
申请日期
1929.10.23
申请人
WHEELER ERNEST S;BURDICK ALLEN L
发明人
WHEELER ERNEST S.;BURDICK ALLEN L.
分类号
G09F13/00
主分类号
G09F13/00
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代理人
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