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发明名称
Rail joint
摘要
申请公布号
US1843448(A)
申请公布日期
1932.02.02
申请号
US19300421828
申请日期
1930.01.18
申请人
ROBERT FARIES
发明人
FARIES ROBERT
分类号
E01B11/08
主分类号
E01B11/08
代理机构
代理人
主权项
地址
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