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US Patent: 1,693,109
Semiautomatic Valve
Patentee: Walter Ernst (exact or similar names) - Mount Gilead, Morrow County, OH USPTO Classifications: 137/112, 137/495, 137/509, 137/606, 137/627.5, 137/636.1, 91/29, 91/33, 91/446 Tool Categories: industrial machines : hydraulic machinery : hydraulic valves Assignees: Hydraulic Press Mfg. Co. - Mount Gilead, Morrow County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 26, 1926 Granted: Nov. 27, 1928 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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