Basement emergency exit

Details Basement emergency exit Basement emergency exit

1979-07-25

1980-09-16

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Door and ladder

Door operates ladder

182 95, E06C 134, E06C 910

Patent

active

042224586

ABSTRACT:
A folding stairway interconnected with a basement window and its lock, for unlocking the window and opening the window when the stairs are pivoted from a closed or folded position to a down, usable position.

REFERENCES:
patent: 145844 (1873-12-01), Chipley
patent: 527852 (1894-10-01), Grosse
patent: 937710 (1909-10-01), Mowrey
patent: 2393759 (1946-01-01), Eakin
patent: 3055452 (1962-09-01), Bourdunis

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