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US Patent: 4,289,066
Hydraulic position control for mechanical power press slides
Patentee: Norbert J. Proga (exact or similar names) - Eastlake, OH USPTO Classifications: 100/257, 100/346 Tool Categories: metalworking machines : metalworking presses : stamping presses metalworking machines : sheet metal : stamping presses Assignees: Niagara Machine & Tool Works - Buffalo, NY Manufacturer: Niagara Machine & Tool Works - Buffalo, NY Witnesses: Unknown	Patent Dates: Applied: May 05, 1980 Granted: Sep. 15, 1981 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Niagara Machine & Tool Works

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