Movable ladder step
United States Patent 2557270
US Patent References:
/0310218.html
- - 0310218

/1228868.html
- - 1228868

Removable ladder step
- - 1615135

Platform for use with ladders, etc.
- - 1943626

Ladder hook
- - 2088895


Inventors:
Franklin Sr., Eugene T.
Walter, Ellison
Publication Date:
06/19/1951
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Assignee:
Franklin Sr., Eugene T.
Walter, Ellison
Primary Class:
182/120
Other Classes:
248/238
International Classes:
E06C1/38; E06C1/00
US Patent References:
2182475Adjustable ladder step
2297883Adjustable ladder platform