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经营范围
发明名称
Well screening device
摘要
申请公布号
US3099318(A)
申请公布日期
1963.07.30
申请号
US19610084387
申请日期
1961.01.23
申请人
MILLER MONTGOMERY K;KUMLER WILLIAM L
发明人
MILLER MONTGOMERY K.;KUMLER WILLIAM L.
分类号
E21B43/08;E21B43/10
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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