Ladder having adjustable leg extensions

Details Ladder having adjustable leg extensions Ladder having adjustable leg extensions

1977-04-25

1978-05-30

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

E06C 744

Patent

active

040918939

ABSTRACT:
A ladder has adjustable extensions which provide downward continuations of its legs. By securing the extensions in appropriate positions, the legs are provided with different effective lengths so that the ladder may be used safely on staircases and on other uneven or sloping terrain.

REFERENCES:
patent: 317024 (1885-05-01), Schumman
patent: 2152895 (1939-04-01), Longtin
patent: 3394774 (1968-07-01), Lanier
patent: 3861500 (1975-01-01), Dempsey

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