发明名称 VACUUM CLEANING APPLIANCE HAVING A PLURALITY OF CYCLONE SEPARATORS OF DIFFERENT EFFICIENCIES
摘要 <p>A vacuum cleaning appliance comprises a lower efficiency cyclone unit and a high efficiency cyclone unit connected in series. This enables both large and fine dirt particles to be dealt with.</p>
申请公布号 CA1182613(A) 申请公布日期 1985.02.19
申请号 CA19810380126 申请日期 1981.06.18
申请人 PROTOTYPES, LTD. 发明人 DYSON, JAMES
分类号 A47L9/16;(IPC1-7):A47L9/16 主分类号 A47L9/16
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