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发明名称
Dual string hydraulic packer
摘要
申请公布号
US3275079(A)
申请公布日期
1966.09.27
申请号
US19630253429
申请日期
1963.01.23
申请人
DRESSER INDUSTRIES, INC.
发明人
CROW MORGAN L.
分类号
E21B33/122;E21B33/1295
主分类号
E21B33/122
代理机构
代理人
主权项
地址
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