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发明名称
Rail joint
摘要
申请公布号
US1883175(A)
申请公布日期
1932.10.18
申请号
US19310551217
申请日期
1931.07.16
申请人
WAGNER GEORGE W
发明人
WAGNER GEORGE W.
分类号
E01B11/62
主分类号
E01B11/62
代理机构
代理人
主权项
地址
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