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发明名称
PRESSURE LIMITER FOR A DOWNHOLE PUMP AND TESTING APPARATUS
摘要
申请公布号
SG90292(G)
申请公布日期
1992.12.04
申请号
SG19920000902
申请日期
1992.09.09
申请人
HALLIBURTON COMPANY
发明人
分类号
E21B33/124;E21B33/127;F04B43/067;(IPC1-7):E21B33/124;F04B43/06
主分类号
E21B33/124
代理机构
代理人
主权项
地址
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