Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1988-09-07
1990-11-13
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Walker
D12128
Patent
active
D03120619
REFERENCES:
patent: D293663 (1988-01-01), Erfurth
patent: 2872967 (1959-02-01), Kirkpatrick
patent: 3354893 (1967-11-01), Schmerl
patent: 4643211 (1987-02-01), Morris et al.
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