Invalid's chair

Details Invalid's chair Invalid's chair

1987-05-21

1989-05-16

Burke, Wallace R.

Transportation

Perambulator, invalid chair, or stretcher

D12131

Patent

active

D03011313

REFERENCES:
patent: D250977 (1979-02-01), Powers
patent: D286626 (1986-11-01), Britz
patent: D286762 (1986-11-01), Britz
patent: 3215458 (1965-11-01), Wamsley
patent: 3261031 (1966-07-01), Gates
patent: 4016005 (1977-04-01), DeMatteo
patent: 4079990 (1978-03-01), McMunn et al.
patent: 4099277 (1978-07-01), Watkins
patent: 4285541 (1981-08-01), Onishi
patent: 4428615 (1984-01-01), Hynson
patent: 4453732 (1984-06-01), Assanah et al.
patent: 4691962 (1987-09-01), Holdt
patent: 4717169 (1988-01-01), Shaffer

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