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US Patent: 1,996,467
Electromagnetic Hydraulic Control
Patentee: Hans Ernst (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 409/152, 409/170, 451/11, 451/395, 60/486 Tool Categories: metalworking machines : metalworking machine mechanisms : hydraulic apparatus Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Witnesses: Unknown	Patent Dates: Applied: Oct. 07, 1930 Granted: Apr. 02, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.
Description: This patent number was seen on a Cincinnati Milling Machine Co. patent plate 4FV-101.

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