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发明名称
Downhole tool
摘要
申请公布号
GB0106538(D0)
申请公布日期
2001.05.02
申请号
GB20010006538
申请日期
2001.03.15
申请人
ANDERGAUGE LIMITED
发明人
分类号
E21B21/10;E21B23/00;E21B34/10
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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