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发明名称
Improvements in, and relating to, taps, cocks or valves
摘要
申请公布号
GB347499(A)
申请公布日期
1931.04.30
申请号
GB19300014996
申请日期
1930.05.15
申请人
GUMMERS, LIMITED;ALICK EDWIN ELLIS
发明人
分类号
F16K31/50
主分类号
F16K31/50
代理机构
代理人
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地址
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