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发明名称
Cementing tool
摘要
申请公布号
US2360311(A)
申请公布日期
1944.10.17
申请号
US19410389384
申请日期
1941.04.19
申请人
AUSBURN FRANK P;WINSLOW CHARLES C
发明人
AUSBURN FRANK P.;WINSLOW CHARLES C.
分类号
E21B33/134
主分类号
E21B33/134
代理机构
代理人
主权项
地址
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