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发明名称
Hydraulic servo-valve
摘要
申请公布号
US2824574(A)
申请公布日期
1958.02.25
申请号
US19550502471
申请日期
1955.04.19
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
PLACE MARK I.
分类号
F15B13/043
主分类号
F15B13/043
代理机构
代理人
主权项
地址
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