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发明名称
Plug valve
摘要
申请公布号
US2518790(A)
申请公布日期
1950.08.15
申请号
US19450571392
申请日期
1945.01.05
申请人
THE DURIRON COMPANY, INC.
发明人
JACOBSEN OYSTEIN
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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