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发明名称
Method and apparatus for completing wells
摘要
申请公布号
US2150887(A)
申请公布日期
1939.03.14
申请号
US19360058821
申请日期
1936.01.13
申请人
GRAY TOOL COMPANY
发明人
MUELLER ROBERT A.;SMITH ROGER
分类号
E21B33/06
主分类号
E21B33/06
代理机构
代理人
主权项
地址
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