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发明名称
Advertising device
摘要
申请公布号
US1744624(A)
申请公布日期
1930.01.21
申请号
US19280282082
申请日期
1928.06.01
申请人
ADOLPH ERISMAN
发明人
ERISMAN ADOLPH
分类号
G09F19/00
主分类号
G09F19/00
代理机构
代理人
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