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Folding wheelchair with rigid seat

Image Number 9 for United States Patent #5145197.

A folding wheelchair has a rigid seat, leg support members stored in a compartment within the seat, a rigid backrest that can be collapsed when the wheelchair is folded, armrests that can be swung toward the seat or the backrest, and wheels that can be adjusted to raise or lower the seat and/or to shorten or lengthen the wheelbase. The rigid seat can be raised to a position in which the front or the front and rear portions are elevated.

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