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发明名称
IMPROVED HYDRAULIC JARRING TOOL
摘要
申请公布号
GB2085054(A)
申请公布日期
1982.04.21
申请号
GB19810030793
申请日期
1981.10.13
申请人
HALLIBURTON CO
发明人
分类号
E21B31/113;(IPC1-7):E21B31/11
主分类号
E21B31/113
代理机构
代理人
主权项
地址
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