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发明名称
Well packer
摘要
申请公布号
US3104717(A)
申请公布日期
1963.09.24
申请号
US19610141942
申请日期
1961.09.25
申请人
JERSEY PRODUCTION RESEARCH COMPANY
发明人
SANDLIN HERMAN L.;BARRY ADELBERT
分类号
E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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