Patent Model - Step-ladder

Maker and role
Melvin Lovell (b.1844, d.1895), Patentee
F.F. Adams & Co., (Limited), Assignee
Production date
Feb 03 1880
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Object detail

Wood, brass
12 x 4 x 1 3/4" (30.5 x 10.2 x 4.4cm)
Lovell assigned his rights to F. F. Adams & Co., (Limited) of Erie,
Pennsylvania. His patent “relates to the construction of step-ladders; and it consists in providing new and useful means for opening
and closing the props and for retaining the props open.” (Patent Number 224,020)
Object number
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