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发明名称
Roadway guard
摘要
申请公布号
US1913690(A)
申请公布日期
1933.06.13
申请号
US19280255276
申请日期
1928.02.18
申请人
THE COLORADO FUEL & IRON COMPANY
发明人
TEETOR RALPH J.
分类号
E01F15/06
主分类号
E01F15/06
代理机构
代理人
主权项
地址
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