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US Patent: 452,991
Mechanical movement Spindle feed for drill press
Patentee: Albert L. Colburn (exact or similar names) - New Haven, CT USPTO Classifications: 254/103, 408/135, 475/169, 475/175, 475/176, 475/177 Tool Categories: metalworking machines : drilling and boring : drill presses woodworking machines : wood drilling and boring : drill presses Assignees: None Manufacturer: Albert L. Colburn - New Haven, CT Witnesses: Fred C. Earle Lillian D. Kelsey	Patent Dates: Applied: Jan. 26, 1891 Granted: May 26, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Albert L. Colburn

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