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经营范围
发明名称
Cementing casing
摘要
申请公布号
US2965171(A)
申请公布日期
1960.12.20
申请号
US19570674875
申请日期
1957.07.29
申请人
PAN AMERICAN PETROLEUM CORPORATION
发明人
HOARD GEORGE C.;MILAM CHARLES R.
分类号
E21B27/02;E21B33/14
主分类号
E21B27/02
代理机构
代理人
主权项
地址
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