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发明名称
Improvements in plug valves for controlling fluids
摘要
申请公布号
GB639742(A)
申请公布日期
1950.07.05
申请号
GB19470029996
申请日期
1947.11.11
申请人
RONALD KINGSLEY STOCKS
发明人
分类号
F16K3/28;F16K41/10
主分类号
F16K3/28
代理机构
代理人
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