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US Patent: 111,953
Improvement in saw-tooth swages
Patentee: John Lough (exact or similar names) - Buckingham, QC Canada USPTO Classifications: 76/53, 76/75 Tool Categories: metalworking machines : grinders : sharpening machines : saw sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Robert McKneight Thomas Ritchie	Patent Dates: Granted: Feb. 21, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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