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发明名称
Fluid choke
摘要
申请公布号
US2011100(A)
申请公布日期
1935.08.13
申请号
US19330663567
申请日期
1933.03.30
申请人
HUGHES TOOL COMPANY
发明人
WOODS GORHAM W.
分类号
F16L53/00;F16L55/04
主分类号
F16L53/00
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代理人
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