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US Patent: 140,832
Improvement in sharpening-machines Machine for dressing lathe centers
Patentees: James P. Kealy (exact or similar names) - Bridgeport, CT Joseph Rigney (exact or similar names) - Bridgeport, CT USPTO Classifications: 408/124, 408/22, 451/155, 451/436, 451/65 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: David Shattuck Michael Eberhard	Patent Dates: Applied: Mar. 29, 1873 Granted: Jul. 15, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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