Powered wheelchair

Details Powered wheelchair Powered wheelchair

1998-09-28

1999-09-07

Chin, Kay H.

Transportation

Perambulator, invalid chair, or stretcher

Wheelchair

1212

Patent

active

D04135547

REFERENCES:
patent: D316063 (1991-04-01), Michel
patent: 2993550 (1961-07-01), Klappert
patent: 3100547 (1963-08-01), Rosenthal
patent: 3213957 (1965-10-01), Wrigley
patent: 3749192 (1973-07-01), Karchak, Jr.
patent: 3807520 (1974-04-01), Chisholm
patent: 4037676 (1977-07-01), Ruse
patent: 4515383 (1985-05-01), Minnebraker
patent: 4805711 (1989-02-01), Lautzenhiser
patent: 4949408 (1990-08-01), Trkla
patent: 5094310 (1992-03-01), Richey et al.
patent: 5156226 (1992-10-01), Boyer et al.
patent: 5242138 (1993-09-01), Kornberg
patent: 5351774 (1994-10-01), Okamoto
patent: 5531284 (1996-07-01), Okamoto
patent: 5540297 (1996-07-01), Meier
patent: 5575348 (1996-11-01), Goertzen et al.

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