4. Transportation
  5. Perambulator, invalid chair, or stretcher
  6. Wheelchair

Brent L. Twitchell

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Child transport vehicle

Land vehicles – Wheeled – Occupant propelled type
Patent

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Invalid chair

Transportation – Perambulator – invalid chair – or stretcher – Wheelchair
Patent

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Movable seat for a motorized transport chair

Chairs and seats – Movable bottom – Interconnected with back for relative concurrent movement
Patent

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Three-dimensional lift

Traversing hoists – With haul-in line
Patent

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Profile ID: LFUS-PAI-P-393662

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