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US Patent: 635,976
Lathe-chuck
Patentees: James Charles Potter (exact or similar names) - Pawtucket, RI John Johnston (exact or similar names) - Pawtucket, RI USPTO Classifications: 279/112 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Potter & Johnston Co. - Pawtucket, RI Manufacturer: Potter & Johnston Machine Co. - Pawtucket, RI Witnesses: B. M. Simms J. A. Miller, Jr.	Patent Dates: Applied: Nov. 17, 1898 Granted: Oct. 31, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Potter & Johnston Machine Co.

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