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US Patent: 1,538,174
Holding device
Patentee: Emery E. Davis (exact or similar names) - St. Louis, MO USPTO Classifications: 125/11.14, 451/367 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: Davis Boring Tool Co. - St. Louis, MO Manufacturer: Davis Boring Tool Co. - St. Louis, MO Witnesses: Unknown	Patent Dates: Applied: Oct. 04, 1922 Granted: May 19, 1925 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Davis Boring Tool Co.
Description: The invention is a holder for a boring tool while being sharpened.

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