Self-propelled scaffold
United States Patent 3232375
US Patent References:
/0644950.html
- - 0644950
Safety caster
- - 2176551
Tractionally operated ladder
- - 2237688
Portable and adjustable knockdown scaffold
- - 2335046
Motor attachment for wheel chairs
- - 2495573
/0644950.html
- - 0644950
Safety caster
- - 2176551
Tractionally operated ladder
- - 2237688
Portable and adjustable knockdown scaffold
- - 2335046
Motor attachment for wheel chairs
- - 2495573
Inventors:
Warthen, George T.
Publication Date:
02/01/1966
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Export Citation:
Assignee:
William, Hugh Brown
Robert, Allen Warthen
Charles, Patrick Warthen
Robert, Allen Warthen
Charles, Patrick Warthen
Primary Class:
Other Classes:
182/16, 182/118, 182/127
International Classes:
E04G1/24; E04G5/00; E04G1/00