Height-adjusting apparatus for the nozzle unit of an upright vacuum cleaner

• 1. 喷嘴的调节单元、喷嘴的调节装置及具有其的喷嘴系统 [P] . 中国专利： CN214812796U . 2021-11-23
• 2. 能调节吸入口装置高度的立式真空吸尘器 [P] . 中国专利： CN101558979B . 2013.08.28
• 3. Height-adjusting apparatus for the nozzle unit of an upright vacuum cleaner [P] . 英国专利： GB2400788B . 2005-04-06

  机译： 立式真空吸尘器的喷嘴单元的高度调节装置

• 4. Height-adjusting apparatus for the nozzle unit of an upright vacuum cleaner [P] . 英国专利： GB0400674D0 . 2004-02-18

  机译： 立式真空吸尘器的喷嘴单元的高度调节装置

• 5. Height-adjusting apparatus for the nozzle unit of an upright vacuum cleaner [P] . 英国专利： GB2400788A . 2004-10-27

  机译： 立式真空吸尘器的喷嘴单元的高度调节装置

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