Wheelchair propulsion unit

Details Wheelchair propulsion unit Wheelchair propulsion unit

1988-09-30

1991-04-02

Chin, Kay H.

Transportation

Perambulator, invalid chair, or stretcher

Element or attachment

Patent

active

D03158861

REFERENCES:
patent: 4471972 (1984-09-01), Young
patent: 4865344 (1989-09-01), Romero, Sr. et al.

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