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经营范围
发明名称
Improvements in or relating to inflating and deflating valves
摘要
申请公布号
GB375055(A)
申请公布日期
1932.06.23
申请号
GB19310016104
申请日期
1931.06.02
申请人
SERAFINO DE FAVERI
发明人
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
主权项
地址
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