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发明名称
Mechanical seal ring assembly with hydrodynamic pumping mechanism
摘要
申请公布号
EP1600673(B1)
申请公布日期
2012.04.18
申请号
EP20050253043
申请日期
2005.05.18
申请人
JOHN CRANE INC.
发明人
LAI, WEI-TANG
分类号
F16J15/34;F16J15/42
主分类号
F16J15/34
代理机构
代理人
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地址
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