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US Patent: 3,151,420
Machine for grinding knives
Patentee: George James Machacek, Jr. (exact or similar names) - Northfield, MN USPTO Classifications: 451/261, 451/380 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: Liberty National Bank and Trust Co. - Buffalo, NY Manufacturer: Northfield Foundry & Machine Co. - Northfield, MN Witnesses: Unknown	Patent Dates: Applied: Jan. 17, 1963 Granted: Oct. 06, 1964 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Northfield Foundry & Machine Co.

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