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发明名称
Highway guard
摘要
申请公布号
US2047992(A)
申请公布日期
1936.07.21
申请号
US19350017583
申请日期
1935.04.22
申请人
REPUBLIC STEEL CORPORATION
发明人
BERK ELMORE R.
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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