Supports – Stand – Understructure
Patent
1973-01-03
1976-11-23
Frazier, Roy D.
Supports
Stand
Understructure
182 49, 182107, 182200, E04G 502
Patent
active
039932753
ABSTRACT:
A safety device for supporting legs or feet of a ladder or similar structure which is a one-piece combination of an inclined plane and a series of steps providing a multiplicity of levels on which said structure may be supported.
REFERENCES:
patent: 1915320 (1933-06-01), Jones
patent: D190125 (1961-04-01), Ahrens
Frazier Roy D.
Gibson , Jr. Robert W.
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