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US Patent: 1,439,190
Boring or Surfacing Tool Holder
Patentee: Howard P. Pritchard (exact or similar names) - Cleveland, Cuyahoga County, OH USPTO Classifications: 279/6, 409/218, 409/234 Tool Categories: metalworking machines : milling machines : milling machine tools metalworking machines : drilling and boring : drilling and boring tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 22, 1919 Granted: Dec. 19, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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