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US Patent: 464,577
Bush-hammer sharpener
Patentee: Louis Mayer (exact or similar names) - Mankato, MN USPTO Classifications: 409/226, 76/5.1, 76/82 Tool Categories: metalworking machines : grinders Assignees: None Manufacturer: Mayer Bros. Co. - Mankato, MN Witnesses: Josef Masberg Nicholas Moes	Patent Dates: Applied: Jun. 19, 1891 Granted: Dec. 08, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Mayer Bros. Co.

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