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US Patent: 115,324
Improvement in Chucks for Watchmakers' Lathes
Patentee: William Kerr, Jr. (exact or similar names) - Boston, Suffolk County, MA USPTO Classifications: 279/14 Tool Categories: metalworking machines : metal lathes : metal lathe chucks metalworking machines : metal lathes : watchmakers lathes Assignees: None Manufacturer: Not known to have been produced Witnesses: Fred Curtis Edwin Griffith	Patent Dates: Granted: May 30, 1871 Antedated: May 16, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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