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发明名称
Portable sign structure
摘要
申请公布号
US2681030(A)
申请公布日期
1954.06.15
申请号
US19510211604
申请日期
1951.02.19
申请人
HOGE PHILIP B
发明人
HOGE PHILIP B.
分类号
B60Q7/00
主分类号
B60Q7/00
代理机构
代理人
主权项
地址
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