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经营范围
发明名称
IMPROVEMENTS IN BARRIER SEAL SYSTEMS
摘要
申请公布号
EP0447898(A3)
申请公布日期
1991.10.02
申请号
EP19910103622
申请日期
1991.03.08
申请人
JOHN CRANE, INC.
发明人
VOLDEN, DOUGLAS J.;HOSANNA, RICHARD;NETZEL, JAMES P.
分类号
F16J15/16;F16J15/34;F16J15/40;(IPC1-7):F16J15/34
主分类号
F16J15/16
代理机构
代理人
主权项
地址
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