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发明名称
Blow-out preventer
摘要
申请公布号
US2051261(A)
申请公布日期
1936.08.18
申请号
US19320591549
申请日期
1932.02.08
申请人
MACCLATCHIE MANUFACTURING COMPANY
发明人
MACCLATCHIE JOHN W.
分类号
E21B33/08
主分类号
E21B33/08
代理机构
代理人
主权项
地址
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