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US Patent: 424,025
Machine for sharpening cutting-tools
Patentee: Albert H. Richardson (exact or similar names) - San Francisco, CA USPTO Classifications: 212/71, 451/213, 76/45, 76/51 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: H. C. Lee S. H. Nourse	Patent Dates: Applied: Aug. 14, 1889 Granted: Mar. 25, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: "My invention relates to a machine which is design to sharpen files, saws, and all that class of tools which have irregular cutting-edges..."

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