Safety ladder

Details Safety ladder Safety ladder

1992-01-02

1994-04-26

Chotkowski, Karen J.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

182111, E06C 700

Patent

active

053058518

ABSTRACT:
The present invention provides a safety ladder in which at least one leg of the ladder is adjustable in length to accommodate an uneven terrain.

REFERENCES:
patent: 1609257 (1926-11-01), Lazear
patent: 3428147 (1969-02-01), Gordon
patent: 3474883 (1969-10-01), Weis
patent: 3948352 (1976-04-01), Larson et al.
patent: 4311210 (1982-01-01), Jackson

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