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发明名称
Plug valve
摘要
申请公布号
US2466790(A)
申请公布日期
1949.04.12
申请号
US19440541874
申请日期
1944.06.24
申请人
THE DURIRON COMPANY, INC.
发明人
BETTCHER MORTIMER L.
分类号
F16K5/22
主分类号
F16K5/22
代理机构
代理人
主权项
地址
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