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发明名称
Pumping system
摘要
申请公布号
US2194054(A)
申请公布日期
1940.03.19
申请号
US19390265037
申请日期
1939.03.30
申请人
DE LAVAL STEAM TURBINE COMPANY
发明人
PETERSON ARVID
分类号
F04D13/02;F04D13/14;F04D25/02
主分类号
F04D13/02
代理机构
代理人
主权项
地址
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