Electrically powered wheelchairs with manual direct steering

Wheelchairs powered by electricity, with control of direction (steering) by mechanically changing the orientation of the pivot drive wheel(s) without powered assistance. Included are, e.g. scooters.
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Powered wheelchair, manual steering, class A (primarily for indoor use)

(30 product series)
Powered scooters. 2 rear wheels and 1 or 2 front wheels. Intended for driving on a plane, horizontal surface.

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Powered wheelchair, manual steering, class B (for indoor and outdoor use)

(53 product series)
Powered scooters. 2 rear wheels and 1 or 2 front wheels. Intended for indoor driving and driving outdoor on paved or moderately uneven surfaces.

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Powered wheelchair, manual steering, class C (primarily for outdoor use)

(79 product series)
Powered scooters. 2 rear wheels and 1 or 2 front wheels. Intended for driving in an uneven terrain and on slopes.