Wheeled apparatus (10) is usable both as a wheeled walker and as a wheelchair. The wheeled apparatus (10) includes a foldable frame (12 or 258), first (16A) and second (16B) transversely spaced-apart wheels that are attached to the frame (12 or 258) with a negative camber angle, a third wheel (24A) that...http://www.google.es/patents/US5605345?utm_source=gb-gplus-sharePatente US5605345 - Wheeled apparatus for use as walker and wheelchair
Wheeled apparatus for use as walker and wheelchair
