Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1991-03-27
1993-08-17
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Walker
D21 71
Patent
active
D03384349
REFERENCES:
patent: D193624 (1962-09-01), Wolner
patent: D204252 (1966-04-01), Hubel
patent: D219338 (1970-12-01), Gallagher
patent: D327715 (1992-07-01), Matsuda et al.
patent: 3381975 (1968-05-01), Bowman
patent: 3604722 (1971-09-01), Boley
patent: 3649007 (1972-03-01), Thomas
patent: 4193592 (1980-03-01), Bishow
patent: 4234152 (1980-11-01), Browse
patent: 4901998 (1990-02-01), Griffith
Crowley Joseph M.
Muff Earl A.
Chin Kay H.
Gernstein Terry M.
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