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发明名称
FLUID IMPELLER UNITS
摘要
申请公布号
GB1496661(A)
申请公布日期
1977.12.30
申请号
GB19740000185
申请日期
1974.01.03
申请人
DEVATRON LTD
发明人
分类号
C02F1/04;C02F1/06;F04D21/00;(IPC1-7):F04D29/16
主分类号
C02F1/04
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代理人
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