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发明名称
Improvements relating to non-return valves
摘要
申请公布号
GB685080(A)
申请公布日期
1952.12.31
申请号
GB19500017699
申请日期
1950.07.14
申请人
THE WALTER KIDDE COMPANY LIMITED;R.F.D. COMPANY LIMITED
发明人
SPIDY ALEXANDER RONALD;MITCHELL SIDNEY
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
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地址
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