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发明名称
Rotary mining tools
摘要
申请公布号
AU658429(B2)
申请公布日期
1995.04.13
申请号
AU19920021413
申请日期
1992.05.18
申请人
WILLIAM J. BRADY
发明人
WILLIAM J. BRADY
分类号
E21B10/42;E21B10/43;E21B10/54;E21B10/56;E21B10/567;(IPC1-7):E21B10/46
主分类号
E21B10/42
代理机构
代理人
主权项
地址
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