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US Patent: 2,492,687
Hydraulic Pump
Patentee: Albert H. Dall (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 418/149, 418/185, 418/249, 418/256, 418/39, 418/77 Tool Categories: metalworking machines : metalworking machine mechanisms : hydraulic apparatus industrial machines : pumps : hydraulic pumps Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 30, 1946 Granted: Dec. 27, 1949 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.

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