व्हाट आर द एडवांटेज ऑफ स्विंग सीटेट एवरेस्ट डिस्टेंस
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A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, old age related problems, or disability. These can include spinal cord injuries (paraplegia, ... In 1933 Harry C. Jennings, Sr. and his disabled friend Herbert Everest, both mechanical engineers, invented the first lightweight, steel, folding, portable wheelchair. ... ...
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