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发明名称
Downhole tool
摘要
申请公布号
GB9625389(D0)
申请公布日期
1997.01.22
申请号
GB19960025389
申请日期
1996.12.06
申请人
PHOENIX P.A. LTD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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