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US Patent: 239,444
Lathe Chuck
Patentee: Ambrose Chatwin (exact or similar names) - Brooklyn, Kings County, NY USPTO Classifications: 279/33 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Robert Mitchell - Montreal, QC, Canada Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 28, 1880 Granted: Mar. 29, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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