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发明名称
BOREHOLE REAMER
摘要
申请公布号
GB2180570(A)
申请公布日期
1987.04.01
申请号
GB19860000363
申请日期
1986.05.19
申请人
ALLEN KENT * RIVES
发明人
ALLEN KENT * RIVES
分类号
E21B10/34;(IPC1-7):E21B10/34
主分类号
E21B10/34
代理机构
代理人
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