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US Patent: 680,425
Boring Tool Holder
Patentee: Bernard O. Breitfield (exact or similar names) - Philadelphia, PA USPTO Classifications: 82/161 Tool Categories: metalworking machines : metal lathes : lathe tool holders and tool posts Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 19, 1901 Granted: Aug. 13, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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