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发明名称
EQUALIZER VALVE
摘要
申请公布号
AU2003235521(A1)
申请公布日期
2003.12.02
申请号
AU20030235521
申请日期
2003.05.19
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
RICHARD, R. WATSON;PRESTON, N. WEINTRAUB
分类号
E21B;E21B21/10;E21B34/10;E21B34/14;E21B49/10;F16J15/34;F16K31/122
主分类号
E21B
代理机构
代理人
主权项
地址
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