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经营范围
发明名称
Air or gas relief valve
摘要
申请公布号
US2544476(A)
申请公布日期
1951.03.06
申请号
US19450576521
申请日期
1945.02.07
申请人
JOHN VENNING & COMPANY LIMITED
发明人
VENNING JOHN DANIEL ELDRET
分类号
F16K24/04
主分类号
F16K24/04
代理机构
代理人
主权项
地址
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