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US Patent: 5,902
Universal Instrument Sharpener Honing Machine
Patentees: William Z. W. Chapman (exact or similar names) - Philadelphia, PA John W. Chapman (exact or similar names) - Philadelphia, PA USPTO Classifications: 451/164, 451/367 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: William P. Elliot P. H. Watson	Patent Dates: Granted: Nov. 07, 1848 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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