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US Patent: 150,289
Improvement in apparatus for tempering saws
Patentee: William Clemson (exact or similar names) - Middletown, NY USPTO Classifications: 266/249, 266/259 Tool Categories: tool making : making sawblades Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles J. Humphrey Elisha P. Wheeler	Patent Dates: Applied: Apr. 15, 1874 Granted: Apr. 28, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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