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发明名称
Ball valve
摘要
申请公布号
US2091058(A)
申请公布日期
1937.08.24
申请号
US19340709618
申请日期
1934.02.03
申请人
CHARLES N. HOUGH MANUFACTURING COMPANY
发明人
THOMPSON ORVILLE J.;FELT HENRY W.
分类号
F16K15/04
主分类号
F16K15/04
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代理人
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