Collapsible ladder
United States Patent 3031029
US Patent References:
/0256649.html
- - 0256649

/0386228.html
- - 0386228

/0474975.html
- - 0474975

/1242286.html
- - 1242286

Rope ladder construction
- - 1424115


Inventors:
Davis, Louis M.
Publication Date:
04/24/1962
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Assignee:
MITCHELL METAL PRODUCTS INC
Primary Class:
182/198
Other Classes:
182/228.100
International Classes:
E06C1/56; E06C1/00
US Patent References:
2171863Ladder
2202597Ship ladder
2211259Fire escape
2378914Broad rung ladder
2397950Ladder
2457698Suspender window support for washing windows
2606734Garment support
2736615Window scaffold
2887261Collapsible fire escape ladder
Foreign References:
DE156782C