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发明名称
Blow-out preventer
摘要
申请公布号
US2145458(A)
申请公布日期
1939.01.31
申请号
US19360074923
申请日期
1936.04.17
申请人
PENICK ARTHUR J;PENICK KIRBY T
发明人
PENICK ARTHUR J.;PENICK KIRBY T.
分类号
E21B33/06
主分类号
E21B33/06
代理机构
代理人
主权项
地址
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