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发明名称
Drifting tubing
摘要
申请公布号
AU2004225707(A1)
申请公布日期
2004.10.14
申请号
AU20040225707
申请日期
2004.04.02
申请人
CHURCHILL DRILLING TOOLS LIMITED
发明人
ANDREW PHILIP CHURCHILL
分类号
E21B23/02;E21B23/08;E21B41/00;E21B47/09
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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