Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Combined and convertible
Patent
1990-12-11
1993-12-21
Friedman, Carl D.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Combined and convertible
135 67, 297 5, 297 45, 297481, A45B 300
Patent
active
052714225
ABSTRACT:
A foldable rigid frame front entry safety walker having programmed resistance to backward motion, and having a porous seat to accommodate incontinent patients.
REFERENCES:
patent: 2592879 (1952-04-01), Eyerly
patent: 3354893 (1967-11-01), Schmerl
patent: 3516425 (1970-06-01), Rigal
patent: 4481965 (1984-11-01), Watkins
patent: 4621804 (1986-11-01), Mueller
patent: 4700730 (1987-10-01), Samuelson et al.
patent: 4801176 (1989-01-01), Wolberg
patent: 4826241 (1989-05-01), Barras
Slootsky Simon
Sorrell Michael R.
Friedman Carl D.
Holland Donald S.
Mai Lan M.
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