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US Patent: 112,838
Improvement in machines for grinding saw-teeth
Patentee: John L. Otis (exact or similar names) - Leeds, MA USPTO Classifications: 451/340, 76/43, 76/79 Tool Categories: metalworking machines : grinders : sharpening machines : saw sharpening machines Assignees: None Manufacturer: Northampton Emery Wheel Co. - Leeds, MA Witnesses: P. A. Otis Stephen B. Fuller	Patent Dates: Granted: Mar. 21, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Northampton Emery Wheel Co.
Description: The inventor was co-founder, in 1867, of the Northampton Emery Wheel Co.

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