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US Patent: 1,513,758
Shaper for Grinding Wheels
Patentee: Bengt M. W. Hanson (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 125/11.03, 125/37 Tool Categories: Assignees: None Manufacturer: Pratt & Whitney Co. - Hartford, Hartford County, CT Witnesses: Unknown	Patent Dates: Applied: Oct. 23, 1920 Granted: Nov. 04, 1924 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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