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发明名称
Yieldable highway guard
摘要
申请公布号
US3077339(A)
申请公布日期
1963.02.12
申请号
US19610087207
申请日期
1961.02.06
申请人
WHITE ANDREW J
发明人
WHITE ANDREW J.
分类号
E01F15/04
主分类号
E01F15/04
代理机构
代理人
主权项
地址
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