Auxiliary ladder rung
United States Patent 2941617
US Patent References:
/0567755.html
- - 0567755

/1285817.html
- - 1285817

Ladder bracket
- - 1494267

Safety bracket for ladders
- - 1543551

Ladder step
- - 2585150


Inventors:
Stiffler, Hugh A.
Publication Date:
06/21/1960
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Assignee:
Stiffler, Hugh A.
Primary Class:
182/120
Other Classes:
182/223
International Classes:
E06C1/38; E06C1/00
US Patent References:
2599976Adjustable ladder step