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GREEN BIKE

  • US 20120086183A1
  • Filed: 10/05/2011
  • Published: 04/12/2012
  • Est. Priority Date: 10/12/2010
  • Status: Active Grant
First Claim
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1. A green bike comprising:

  • a frame, having a pedal, a front supporting unit, and a rear supporting unit;

    two wheels, attached to the front supporting unit and the rear supporting unit, respectively;

    a first internal-gear module and a second internal-gear module coupled with the pedal and at least one of the wheels; and

    a transmission element linking the first and the second internal-gear modules.

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