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发明名称
IMPROVED ROTARY ROLLER REAMER
摘要
申请公布号
HU9502230(D0)
申请公布日期
1995.09.28
申请号
HU19950002230
申请日期
1994.11.10
申请人
GEARHART UNITED PTY. LTD.
发明人
KENNEDY,JOHN FRANCIS
分类号
E21B10/22;E21B10/24;E21B10/30
主分类号
E21B10/22
代理机构
代理人
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