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US Patent: 1,835,992
Combined Post Shank and Bit
Patentee: Ole Severson (exact or similar names) - Shelton, Fairfield County, CT USPTO Classifications: 407/91, 407/96 Tool Categories: metalworking machines : metal lathes : lathe tool holders and tool posts Assignees: O. K. Tool Co., Inc. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 24, 1928 Granted: Dec. 08, 1931 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for O. K. Tool Holder Co.

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