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US Patent: 2,520,879
Lubricating System
Patentee: Albert H. Dall (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 184/6.14, 409/135, 409/219, 451/219 Tool Categories: metalworking machines : grinders : cylindrical grinders metalworking machines : metalworking machine mechanisms : metalworking machine lubrication Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 10, 1944 Granted: Aug. 29, 1950 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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