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US Patent: 1,017,635
Automatic Tripping Device for the Feed Mechanism of Machine Tools
Patentee: Leslie H. Colburn (exact or similar names) - Franklin, Venango County, PA USPTO Classifications: 408/134, 408/135, 408/14 Tool Categories: metalworking machines : metalworking machine mechanisms metalworking machines : drilling and boring : drill presses Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 13, 1910 Granted: Feb. 13, 1912 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Colburn Machine Tool Co.

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