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发明名称
MINE SHAFT LINER
摘要
申请公布号
GB2079244(B)
申请公布日期
1984.12.12
申请号
GB19810017440
申请日期
1981.06.08
申请人
SANTA FE INTERNATIONAL CORP
发明人
分类号
B66C1/66;E21B19/06;E21B23/00;E21D5/12;(IPC1-7):B66C1/66
主分类号
B66C1/66
代理机构
代理人
主权项
地址
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