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US Patent: 241,563
Metal-planing machine
Patentee: Francis A. Pratt (exact or similar names) - Hartford, CT USPTO Classifications: 409/345 Tool Categories: metalworking machines : metal planers Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Pratt & Whitney Co. - Hartford, CT Witnesses: Theodore G. Ellis Wendell R. Curtis	Patent Dates: Applied: Mar. 25, 1881 Granted: May 17, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Pratt & Whitney Co.
Description: Seen on an old Pratt & Whitney milling machine.

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