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US Patent: 1,870,501
Plural Pressure Pump Control for Hydraulic Presses
Patentee: Walter Ernst (exact or similar names) - Mount Gilead, Morrow County, OH USPTO Classifications: 100/266, 100/269.14, 417/218, 60/443, 60/446, 60/475 Tool Categories: industrial machines : pumps : hydraulic pumps : hydraulic pump controls industrial machines : hydraulic machinery : hydraulic presses Assignees: Hydraulic Press Mfg. Co. - Mount Gilead, Morrow County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 14, 1931 Granted: Aug. 09, 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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