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发明名称
Highway barricade support
摘要
申请公布号
US2249685(A)
申请公布日期
1941.07.15
申请号
US19390283698
申请日期
1939.07.10
申请人
DEARING STEPHEN L
发明人
DEARING STEPHEN L.
分类号
E01F13/02
主分类号
E01F13/02
代理机构
代理人
主权项
地址
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