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经营范围
发明名称
Formation packer
摘要
申请公布号
US3083775(A)
申请公布日期
1963.04.02
申请号
US19590844542
申请日期
1959.10.05
申请人
JERSEY PRODUCTION RESEARCH COMPANY
发明人
NIELSON GARTH W.;HENDERSON JAMES D.
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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