Extendable cane

Details Extendable cane Extendable cane

1979-10-04

1981-03-03

Bell, J. Karl

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Crutches

135 75, A45B 900

Patent

active

042534798

ABSTRACT:
A cane or similar article such as a crutch or ski pole is provided with a hand operated lever whereby the user can extend the cane by squeezing on a pair of hand grips.

REFERENCES:
patent: 1905076 (1933-04-01), Van Sciver
patent: 2041334 (1936-05-01), Hage
patent: 2474722 (1949-06-01), Blume
patent: 2593026 (1952-04-01), Hawkins
patent: 3029828 (1962-04-01), Kravitt
patent: 4091828 (1978-05-01), Jorgensen

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