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发明名称
Improvements in or relating to valve mechanisms
摘要
申请公布号
GB783516(A)
申请公布日期
1957.09.25
申请号
GB19540004555
申请日期
1954.02.16
申请人
HUMPHREYS & GLASGOW LIMITED
发明人
MACGREGOR FRANK ALEXANDER
分类号
F16K17/04;F16K31/524
主分类号
F16K17/04
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代理人
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