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US Patent: 2,791,921
Lathe System or the Like
Patentees: Charles W. Heppenstall (exact or similar names) - Fox Chapel, PA Harry J. Ross (exact or similar names) - Pittsburgh, PA Frederick F. Rohrer (exact or similar names) - Pittsburgh, PA USPTO Classifications: 82/130, 82/140, 82/164, 82/52 Tool Categories: metalworking machines : metal lathes metalworking machines : machine tool controls Assignees: Heppenstall Co. - Pittsburgh, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 29, 1951 Granted: May 14, 1957 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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