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发明名称
Hydraulic bi-directional rotary isolation valve
摘要
申请公布号
AU2009227756(B2)
申请公布日期
2012.12.13
申请号
AU20090227756
申请日期
2009.03.17
申请人
WEATHERFORD/LAMB, INC.
发明人
REAVES, MICAHEL R.;LLOYD, SAM SUN
分类号
E21B34/10
主分类号
E21B34/10
代理机构
代理人
主权项
地址
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