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US Patent: 2,214,881
Combination Straightening Block and Test Roll
Patentee: Henry A. Doherty (exact or similar names) - Nashua, Hillsborough County, NH USPTO Classifications: 72/213, 72/390.6, 72/420 Tool Categories: metalworking machines : metal straightening machines Assignees: Greenerd Arbor Press Co. - Nashua, Hillsborough County, NH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 06, 1938 Granted: Sep. 17, 1940 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Greenard Press & Machine Co., Inc.

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