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US Patent: 706,049
Variable Speed Device
Patentees: Bengt M. W. Hanson (exact or similar names) - Hartford, Hartford County, CT Frederick W. Gordon (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 74/341 Tool Categories: metalworking machines : metal lathes : engine lathes metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms Assignees: Pratt & Whitney Co. - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 24, 1902 Granted: Aug. 05, 1902 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co.

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