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US Patent: 748,844
Slotting Machine
Patentee: Leslie H. Colburn (exact or similar names) - Franklin, Venango County, PA USPTO Classifications: 409/307, 409/335 Tool Categories: metalworking machines : key seating machines metalworking machines : metal slotting machines Assignees: Leslie H. Colburn - Franklin, Venango County, PA Baker Bros. - Toledo, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 13, 1902 Granted: Jan. 05, 1904 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Baker Brothers "Vintage Machinery" entry for Colburn Machine Tool Co.

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