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US Patent: 3,250,155
Recessing Tool
Patentee: Harold F. Armstrong (exact or similar names) - Milford, Hillsborough County, NH USPTO Classifications: 408/151, 82/1.2 Tool Categories: metalworking machines : milling machines : milling machine cutters Assignees: O. K. Tool Co., Inc. - Milford, Hillsborough County, NH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 05, 1965 Granted: May 10, 1966 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for O.K. Tool Co., Inc.

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