发明名称 Vacuum cleaner suction head has cooling fan provided to forcibly blow external air into power brush for cooling rotary and linear operating devices
摘要 <p>A cooling fan (61) forcibly blows air outside the head case (11) into a power brush (21) for removing alien substances, so as to cool the rotary and linear operating devices (31,41).</p>
申请公布号 DE10200346(A1) 申请公布日期 2003.03.27
申请号 DE2002100346 申请日期 2002.01.08
申请人 LG ELECTRONICS INC., SEOUL/SOUL 发明人 PARK, JIN SOO
分类号 A47L9/04;(IPC1-7):A47L9/04 主分类号 A47L9/04
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