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发明名称
METHOD AND APPARATUS FOR CONNECTING TUBULARS USING A TOP DRIVE
摘要
申请公布号
CA2605256(A1)
申请公布日期
2000.03.02
申请号
CA19992605256
申请日期
1999.08.16
申请人
WEATHERFORD/LAMB, INC.
发明人
PIETRAS, BERND-GEORG
分类号
E21B19/16;E21B19/06
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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