A system for changing speed for a bicycle and device for removing the tire without disassembling or disturb the rear wheel.

• 1. 一种适用于盾构机刀盘的不拆卸式吊装装置 [P] . 中国专利： CN215160198U . 2021-12-14
• 2. 一种适用于不同尺寸轴颈的不拆卸修复装置 [P] . 中国专利： CN112008552A . 2020-12-01
• 3. A system for changing speed for a bicycle and device for removing the tire without disassembling or disturb the rear wheel. [P] . 法国专利： FR16147E . 1912-11-20

  机译： 一种用于改变自行车速度的系统和一种用于在不拆卸或不干扰后轮的情况下拆卸轮胎的装置。

• 4. A system for changing speed for a bicycle and device for removing the tire without disassembling or disturb the rear wheel. [P] . 法国专利： FR435192A . 1912-02-23

  机译： 一种用于改变自行车速度的系统和一种用于在不拆卸或不干扰后轮的情况下拆卸轮胎的装置。

• 5. Tensioning system of the chain, which makes it possible to replace the rear tire of a bicycle without disassembling or disturb the wheel. [P] . 法国专利： FR13529E . 1911-04-29

  机译： 链条的张紧系统，可以在不拆卸或不影响车轮的情况下更换自行车的后轮胎。

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• 4. 一种用于电力系统谐波抑制的APF装置研究 [A] . 刘毅东 . 2015