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

Ronald D. Elson

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Electrically powered three wheeled vehicle for the handicapped

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

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Powered wheelchair

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

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Snap-on attachment for roller chain conveyors

Conveyors: power-driven – Conveyor section – Endless conveyor
Patent

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Profile ID: LFUS-PAI-P-609003

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