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发明名称
Improvements in or relating to non-return valves
摘要
申请公布号
GB498169(A)
申请公布日期
1939.01.04
申请号
GB19370024073
申请日期
1937.09.03
申请人
ROBERT ARNOLD BLAKEBOROUGH;FREDRICK AUGUST KLOUMAN;ROBERT THORPE
发明人
分类号
F16K15/03
主分类号
F16K15/03
代理机构
代理人
主权项
地址
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