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发明名称
Highway guard
摘要
申请公布号
US2296432(A)
申请公布日期
1942.09.22
申请号
US19370180296
申请日期
1937.12.17
申请人
FERGUSON WILLIAM S
发明人
FERGUSON WILLIAM S.
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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