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US Patent: 147,921
Improvement in Tool-Grinding Machines
Patentee: John P. Fay (exact or similar names) - Worcester, MA USPTO Classifications: 451/365, 451/367 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Joseph A. Howland Otis Warren	Patent Dates: Applied: Jan. 05, 1874 Granted: Feb. 24, 1874 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)
Description: Machine for grinding tools for "turning, boring [twist drills], planing, and similar work."

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