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US Patent: 330,551
Pivoting-chuck
Patentee: Frederick Boardman (exact or similar names) - Mansfield, MA USPTO Classifications: 279/108 Tool Categories: trade specific : watchmaker metalworking machines : metal lathes : metal lathe chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: John R. Snow W. A. Copeland	Patent Dates: Applied: Jul. 23, 1884 Granted: Nov. 17, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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