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发明名称
Improvements in gate-type shut-off valves
摘要
申请公布号
GB671546(A)
申请公布日期
1952.05.07
申请号
GB19490031144
申请日期
1949.12.05
申请人
TEDDINGTON CONTROLS LIMITED
发明人
COEN JAMES RAYMOND
分类号
F16K3/02
主分类号
F16K3/02
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