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发明名称
Traveling signboard
摘要
申请公布号
US1764683(A)
申请公布日期
1930.06.17
申请号
US19290347249
申请日期
1929.03.15
申请人
BERNHARD HOETGER
发明人
HOETGER BERNHARD
分类号
G09F11/02
主分类号
G09F11/02
代理机构
代理人
主权项
地址
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