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经营范围
发明名称
EXTRACTOR PUMP FOR FLUIDS UNDER VACUUM
摘要
申请公布号
GB1597655(A)
申请公布日期
1981.09.09
申请号
GB19780017410
申请日期
1978.05.03
申请人
FERES V
发明人
分类号
F04D1/14;F04D29/22;F04D31/00;(IPC1-7):F04D17/00
主分类号
F04D1/14
代理机构
代理人
主权项
地址
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