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发明名称
Lubricated plug valve
摘要
申请公布号
US2048384(A)
申请公布日期
1936.07.21
申请号
US19350056328
申请日期
1935.12.27
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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