Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Walker type
Patent
1986-09-25
1988-05-10
Hafer, Robert A.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Walker type
A61H 300
Patent
active
047428384
ABSTRACT:
A walker having a rigid main frame including front and side frame portions, depending rear legs and a pair of hand holds on the upper portion of the main frame, a front frame member including a pair of front legs journaled to the front portion of the main frame for forward and rearward swinging movement relative to the main frame, a spring member on the main frame normally urging the front legs to a forward extended position, and guide members to limit the swinging movement of the front legs.
REFERENCES:
patent: 2656874 (1953-10-01), Robb
patent: 2738830 (1956-03-01), Black
patent: 3165112 (1965-01-01), Ries
patent: 3517677 (1970-06-01), Smith
Muiza Andrejs
Valiquette Albert H.
Hafer Robert A.
Lackey Harrington A.
Sam Charles H.
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