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US Patent: 280,867
Watchmakers Lathe Improvement in Watchmakers Lathes
Patentee: Sylvanus Sawyer (exact or similar names) - Fitchburg, Worcester County, MA USPTO Classifications: 279/6, 82/142 Tool Categories: metalworking machines : metal lathes : watchmakers lathes Assignees: None Manufacturer: Sawyer Watch Tool Co. - Waltham, MA Witnesses: G. W. Gregory W. H. Sigston	Patent Dates: Applied: Feb. 16, 1883 Granted: Jul. 10, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin "Vintage Machinery" entry for Sawyer Watch Tool Co.
Description: This was an improvement of Patent #220291 a centering chuck for a watchmakers lathe.

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