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发明名称
FROZEN RAIL JOINTS
摘要
申请公布号
CA600474(A)
申请公布日期
1960.06.21
申请号
CAD600474
申请日期
申请人
POOR AND COMPANY
发明人
HORACE L. LANSING
分类号
E01B11/04;(IPC1-7):E01B11/04
主分类号
E01B11/04
代理机构
代理人
主权项
地址
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