Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1993-07-14
1994-12-20
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Walker
D21 78, D21 59
Patent
active
D03535665
REFERENCES:
patent: D268405 (1983-03-01), Hanses et al.
patent: D321216 (1991-10-01), Pape et al.
patent: 2545336 (1951-03-01), Binder
patent: 2884046 (1959-04-01), Patrick
patent: 4946158 (1990-08-01), Olayan et al.
patent: 5013032 (1991-05-01), Baum et al.
patent: 5154658 (1992-10-01), Marcus
Chow Chi K. W.
Tsang Frederick L. T.
Chin Kay H.
Video Technology Industries, Inc.
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