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US Patent: 2,253,413
Spindle Drive Control for Machine Tools
Patentee: Harry Russell Young (exact or similar names) - Merion, Montgomery County, PA USPTO Classifications: 29/26R, 408/42, 408/9 Tool Categories: metalworking machines : machine tool controls Assignees: William Sellers & Co., Inc. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 14, 1939 Granted: Aug. 19, 1941 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for William Sellers & Co.

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