Patent Model - Framing-Square
Maker and role
Mahon Cornell, Patentee
Jan 20 1880
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19 x 16 1/2 x 2 1/4" (48.3 x 41.9 x 5.7cm)
Cornell's patent "consist in a combined rule, square and gage for carpenter's use in framing, the object of the invention being to furnish an implement for carrying out all the purposes for which the ordinary square is used with greater facility, convenience, and accuracy." (Patent Number 223,709)
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