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经营范围
发明名称
Retrievable bridge plug
摘要
申请公布号
US3244233(A)
申请公布日期
1966.04.05
申请号
US19630270647
申请日期
1963.04.04
申请人
HALLIBURTON COMPANY
发明人
JR. SEVERO L. VILLALON,
分类号
E21B23/06
主分类号
E21B23/06
代理机构
代理人
主权项
地址
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