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发明名称
Liner hanger apparatus
摘要
申请公布号
US2315931(A)
申请公布日期
1943.04.06
申请号
US19400340984
申请日期
1940.06.17
申请人
BAKER OIL TOOLS, INC.
发明人
BURT CLARENCE E.;SUTTER THEODORE;RAGAN THOMAS M.
分类号
E21B33/14;E21B43/10
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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