Crutch

Details Crutch Crutch

1978-07-26

1980-01-22

Machado, Reinaldo P.

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Crutches

135 74, A61H 302

Patent

active

041845030

ABSTRACT:
A foldable crutch having an upper portion and a lower portion of substantially equal lengths, connecting means adapted for pivotally connecting the adjacent ends of the upper and lower portions, and a locking mechanism adapted to hold the upper and lower portions in the linearly stretched state against the pivotal movement.

REFERENCES:
patent: 595637 (1897-12-01), Kuhnke
patent: 790653 (1905-05-01), Notthoff
patent: 1534820 (1925-04-01), Walmsley
patent: 1587383 (1926-06-01), Kennett
patent: 1835389 (1931-12-01), Ghittino
patent: 1945460 (1934-01-01), Willis
patent: 2490380 (1949-12-01), Schweppenheiser
patent: 3811151 (1974-05-01), Kuemmerlin

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