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US Patent: 133,810
Improvement in saws
Patentee: Alfred P. Sproul (exact or similar names) - Cherryfield, ME USPTO Classifications: 83/699.21, 83/699.41 Tool Categories: woodworking machines : circular saws : saw teeth woodworking machines : machine and tool cutters : saw teeth Assignees: None Manufacturer: Not known to have been produced Witnesses: A. M. Nash J. H. Nickels	Patent Dates: Granted: Dec. 10, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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