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发明名称
Selective torque operator for a valve
摘要
申请公布号
AU2011239234(A1)
申请公布日期
2012.05.10
申请号
AU20110239234
申请日期
2011.10.20
申请人
VETCO GRAY CONTROLS INC.
发明人
UDIPI, MAHESHA
分类号
E21B34/02;F16K31/524;F16K31/528
主分类号
E21B34/02
代理机构
代理人
主权项
地址
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