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发明名称
Rail joint
摘要
申请公布号
US1859729(A)
申请公布日期
1932.05.24
申请号
US19300460668
申请日期
1930.06.12
申请人
JOHN BRUNNER
发明人
BRUNNER JOHN
分类号
E01B11/58
主分类号
E01B11/58
代理机构
代理人
主权项
地址
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