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发明名称
Improvements relating to non-return valves and like valves
摘要
申请公布号
GB487908(A)
申请公布日期
1938.06.28
申请号
GB19370010792
申请日期
1937.04.15
申请人
PHILLIPS & POWIS AIRCRAFT LIMITED;REGINALD JOHN PARROTT
发明人
分类号
F16K15/02
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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