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发明名称
Arc weld rail bond
摘要
申请公布号
US2834551(A)
申请公布日期
1958.05.13
申请号
US19530388481
申请日期
1953.10.27
申请人
UNITED STATES STEEL CORPORATION
发明人
BLACK MERRILL F.
分类号
B60M5/00
主分类号
B60M5/00
代理机构
代理人
主权项
地址
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