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发明名称
Tie plate
摘要
申请公布号
US2076019(A)
申请公布日期
1937.04.06
申请号
US19320608949
申请日期
1932.05.03
申请人
THE AMERICAN FORK & HOE COMPANY
发明人
FIFIELD ALBERT F.
分类号
E01B9/68
主分类号
E01B9/68
代理机构
代理人
主权项
地址
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