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发明名称
Multistage-seal with magnetic fluid
摘要
申请公布号
PL387879(A1)
申请公布日期
2010.10.25
申请号
PL20090387879
申请日期
2009.04.24
申请人
POLITECHNIKA GDANSKA
发明人
MATUSZEWSKI LESZEK
分类号
F16J15/53;F16J15/40
主分类号
F16J15/53
代理机构
代理人
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