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Driving hub for a vehicle, particularly a bicycle, with an infin

Friction gear transmission systems or components – Friction gear is ball – Variable ratio
Patent

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Frictional variable transmission for vehicle

Friction gear transmission systems or components – Friction gear is ball
Reexamination Certificate

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Gearless speed reducer or increaser

Friction gear transmission systems or components – Friction gear is ball
Reexamination Certificate

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Integral balls and cams type motorized speed converter with bear

Friction gear transmission systems or components – Friction gear is ball
Patent

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Modified-cam speed converter

Friction gear transmission systems or components – Friction gear is ball
Patent

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Pancake motor nested within cam speed converter

Friction gear transmission systems or components – Friction gear is ball
Patent

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Speed converter

Friction gear transmission systems or components – Friction gear is ball
Patent

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Speed converter with dwell

Friction gear transmission systems or components – Friction gear is ball
Patent

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Speed converter with zero backlash

Friction gear transmission systems or components – Friction gear is ball
Patent

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Variable output speed drive

Friction gear transmission systems or components – Friction gear is ball – Variable ratio
Patent

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