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发明名称
Valve
摘要
申请公布号
US2550984(A)
申请公布日期
1951.05.01
申请号
US19480042049
申请日期
1948.08.02
申请人
发明人
FERGUSON ROBERT E.
分类号
F16K3/02
主分类号
F16K3/02
代理机构
代理人
主权项
地址
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