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发明名称
Improved construction of combined vacuum and pressure relief valves
摘要
申请公布号
GB326438(A)
申请公布日期
1930.03.13
申请号
GB19290026988
申请日期
1929.09.05
申请人
FREDERICK MORTIMER TIMPSON;ALLAN FREDERICK CHARLES TIMPSON
发明人
分类号
F16K17/194
主分类号
F16K17/194
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