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发明名称
Railway tie plate
摘要
申请公布号
US2094335(A)
申请公布日期
1937.09.28
申请号
US19350018780
申请日期
1935.04.29
申请人
WILLARD GEORGE T;PRESTON FREDERICK A
发明人
WILLARD GEORGE T.;PRESTON FREDERICK A.
分类号
E01B9/36
主分类号
E01B9/36
代理机构
代理人
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地址
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