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US Patent: 605,627
Knife-sharpening mechanism for leather-shaving machines
Patentee: John Boyle (exact or similar names) - Peabody, MA USPTO Classifications: 451/153, 451/169 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: John Boyle & Co. - Peabody, MA Witnesses: Charles G. Folsom Alfred McKensie	Patent Dates: Applied: Mar. 11, 1897 Granted: Jun. 14, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for John Boyle & Co.
Description: Improvements to patent 541,262.

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