Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1993-10-21
1995-06-13
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Walker
Patent
active
D03592596
REFERENCES:
patent: 3391930 (1968-07-01), Weissman
patent: 4211309 (1980-07-01), Ruggiero
patent: 4765355 (1988-08-01), Kent
patent: 4946158 (1990-08-01), Olayan et al.
Hokkanen Markku
Pitkakangas Risto
Chin Kay H.
Jafi Multia Oy
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