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发明名称
Well treating device
摘要
申请公布号
US2569893(A)
申请公布日期
1951.10.02
申请号
US19480044285
申请日期
1948.08.14
申请人
KENDALL DONALD G;GIESLER WILLIAM L
发明人
KENDALL DONALD G.;GIESLER WILLIAM L.
分类号
E21B27/02
主分类号
E21B27/02
代理机构
代理人
主权项
地址
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