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发明名称
Improvements in or relating to devices for controlling the flow of fluids
摘要
申请公布号
GB655158(A)
申请公布日期
1951.07.11
申请号
GB19470013261
申请日期
1947.05.16
申请人
NORMALAIR LIMITED;PHILIP JOHN SWAFFIELD
发明人
分类号
F16K17/32
主分类号
F16K17/32
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