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US Patent: 942,843
Gearing
Patentees: John Johnston (exact or similar names) - Pawtucket, RI James Charles Potter (exact or similar names) - Pawtucket, RI USPTO Classifications: 475/254, 475/312, 475/314, 74/568R, 74/99R Tool Categories: metalworking machines : metal lathes : turret lathes Assignees: Potter & Johnston Machine Co. - Pawtucket, RI Manufacturer: Potter & Johnston Machine Co. - Pawtucket, RI Witnesses: J. A. Miller, Jr. B. M. Simms	Patent Dates: Applied: Jan. 07, 1901 Granted: Dec. 07, 1909 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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