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US Patent: 421,487
Grinding and polishing apparatus Saw grinding machine
Patentee: William J. Fisher (exact or similar names) - Newark, NJ USPTO Classifications: 451/188, 451/213 Tool Categories: woodworking machines : specialty woodworking machines : tool making machines Assignees: None Manufacturer: Not known to have been produced Witnesses: F. C. Fischer Thomas S. Crane	Patent Dates: Applied: Sep. 04, 1889 Granted: Feb. 18, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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