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发明名称
BIT SEGMENT FOR SEATING IN A CUTTING POSITION TO FORM CUTTING MEANS
摘要
申请公布号
CA2151274(A1)
申请公布日期
1994.12.17
申请号
CA19942151274
申请日期
1994.06.15
申请人
DOWN HOLE TECHNOLOGIES PTY., LTD.
发明人
MCLEOD, GAVIN THOMAS;EGAN, MATTHEW VANCE
分类号
E21B10/66;E21B23/06;(IPC1-7):E21B23/06
主分类号
E21B10/66
代理机构
代理人
主权项
地址
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