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US Patent: 7,112X
Square
Framing Square
Patentee:
Andrew Wiswell - Exeter, NH

USPTO Classifications:
33/476

Tool Categories:
layout tools : squares : carpenter squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jonathan Lawrence
Joseph Wiswell

Patent Dates:
Granted: Jun. 07, 1832

Patent Pictures:
USPTO pdf tiff
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Description:
As far as I can tell, this is the first patent for a framing square. The claims are difficult to read, but it appears to be talking about laying out of rafters and stairs.

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