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US Patent: 1,978,016
Control Apparatus for Pumps
Patentee: Walter Ernst (exact or similar names) - Mount Gilead, Morrow County, OH USPTO Classifications: 60/380 Tool Categories: industrial machines : pumps : hydraulic pumps : hydraulic pump controls Assignees: Hydraulic Press Mfg. Co. - Mount Gilead, Morrow County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 18, 1932 Granted: Oct. 23, 1934 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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