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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:
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Vintage Machinery entry for Niagara Machine & Tool Works

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