Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1986-11-20
1989-06-06
Burke, Wallace R.
Transportation
Perambulator, invalid chair, or stretcher
Walker
Patent
active
D03014401
REFERENCES:
patent: D240518 (1976-07-01), Ishida
patent: D295397 (1988-04-01), Brownlie et al.
patent: 4359242 (1982-11-01), Gerken et al.
patent: 4576392 (1986-03-01), Quinlan, Jr.
patent: 4615523 (1986-10-01), Chen
Burke Wallace R.
Chin Kay H.
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