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US Patent: 2,790,280
Spindle Positioning Mechanism
Patentees: John W. Wilson (exact or similar names) - Cincinnati, Hamilton County, OH Robert L. Henry (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 318/277, 318/466, 451/398, 451/8 Tool Categories: metalworking machines : grinding machines metalworking machines : metalworking machine mechanisms Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 21, 1955 Granted: Apr. 30, 1957 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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