Heavy duty speed changer device for bicycles and cycle rickshaws

• 1. 配特殊人力车动力接收与特殊变速装置的自行车 [P] . 中国专利： CN205220969U . 2016.05.11
• 2. 用于自行车的变速装置以及包括该变速装置的自行车 [P] . 中国专利： CN100467343C . 2009.03.11
• 3. A bicycle or cycle rickshaw having a speed changer. [P] . IN172538B . 1993-09-18

  机译： 具有变速器的自行车或人力车。

• 4. SPEED CHANGE SYSTEM FOR BICYCLE, METHOD OF SPEED CHANGE FOR BICYCLE AND SPEED CHANGE OPERATION DEVICE FOR BICYCLE [P] . 欧洲知识产权局专利： EP0571631A4 . 1994-01-12

  机译： 自行车的变速系统，自行车的变速方法以及自行车的变速操作装置

• 5. SPEED CHANGE SYSTEM FOR BICYCLE, METHOD OF SPEED CHANGE FOR BICYCLE AND SPEED CHANGE OPERATION DEVICE FOR BICYCLE [P] . 欧洲知识产权局专利： EP0571631A1 . 1993-12-01

  机译： 自行车的变速系统，自行车的变速方法以及自行车的变速操作装置

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• 5. Characterization of infield duty cycles and exhaust emissions from diesel powered off-road heavy-duty equipment. [D] . Rohrbaugh, Jeremiah Christopher. 2002
• 6. The relation of oxygen intake and speed in competition cycling and comparative observations on the bicycle ergometer [O] . L. G. C. E. Pugh 1974
• 7. On the design and prototype manufacturing of multi-speed transmission device of bicycle [O] . Tzu-Hsia Chen, Long-Chang Hsieh 2018
• 8. Speed control device for a heavy duty shaft [R] . 1980

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