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发明名称
Advertising apparatus
摘要
申请公布号
US2165736(A)
申请公布日期
1939.07.11
申请号
US19370120626
申请日期
1937.01.14
申请人
OTTO TWELE
发明人
TWELE OTTO
分类号
G09F13/12
主分类号
G09F13/12
代理机构
代理人
主权项
地址
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