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  1. 1
    SUPPORT DE BATTERIE ET CYCLE COMPORTANT UN TEL SUPPORT

    SUPPORT DE BATTERIE ET CYCLE COMPORTANT UN TEL SUPPORT von DUNCAN CHARLES PATRICK, FRANK LEWIS DAVIDSON ET CHARLES PATRICK DUNCAN, DAVIDSON FRANK LEWIS

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  2. 2
    Electric motor assisted tricycle - has batteries carried on main frame between wheels, held down by auxiliary frame

    Electric motor assisted tricycle - has batteries carried on main frame between wheels, held down by auxiliary frame von CHARLES PATRICK DUNCAN DAVIDSON ET FRANK LEWIS

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  3. 3
    Bicycle with electric drive motor fixed on cycle frame - gear-coupled to pedal shaft having non-stretchable endless chain, drive to drive wheel

    Bicycle with electric drive motor fixed on cycle frame - gear-coupled to pedal shaft having non-stretchable endless chain, drive to drive wheel von FRANK LEWIS ET CHARLES PATRICK DUNCAN DAVIDSON

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