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US Patent: 7,112X
Square Framing Square
Patentee: Andrew Wiswell (exact or similar names) - 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 (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
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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