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发明名称
MINE PROP
摘要
申请公布号
GB2125465(B)
申请公布日期
1986.03.05
申请号
GB19830010725
申请日期
1983.04.20
申请人
RAYMOND BERKLEY * BOTHA
发明人
HAGEN * HALBICH
分类号
E21D15/02;(IPC1-7):E21D15/02
主分类号
E21D15/02
代理机构
代理人
主权项
地址
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