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发明名称
Tool joint for well pipe
摘要
申请公布号
US2262211(A)
申请公布日期
1941.11.11
申请号
US19400324547
申请日期
1940.03.18
申请人
HYDRIL COMPANY
发明人
STONE ALBERT L.
分类号
E21B17/042
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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