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发明名称
DOWNHOLE TOOL
摘要
申请公布号
EP0183482(B1)
申请公布日期
1991.01.30
申请号
EP19850308446
申请日期
1985.11.20
申请人
HALLIBURTON COMPANY
发明人
BECK, HAROLD KENT
分类号
E21B34/00;E21B34/10;E21B49/00
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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