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US Patent: 1,892,568
Surge Valve for Hydraulic Presses or the Like
Patentee: Walter Ernst (exact or similar names) - Mount Gilead, Morrow County, OH USPTO Classifications: 100/269.16, 91/420, 91/441, 92/142 Tool Categories: industrial machines : hydraulic machinery : hydraulic presses hardware : valves Assignees: Hydraulic Press Mfg. Co. - Mount Gilead, Morrow County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 12, 1930 Granted: Dec. 27, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hydraulic Press Mfg. Co.

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