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US Patent: 33,816
Improvement in stopping and changing motion
Patentee: Francis A. Pratt (exact or similar names) - Hartford, CT USPTO Classifications: 192/65 Tool Categories: Assignees: Geo. S. Lincoln & Co. - Hartford, CT Manufacturer: Pratt & Whitney Co. - Hartford, CT Witnesses: Jeremy W. Bliss Thomas Thompson	Patent Dates: Granted: Nov. 26, 1861 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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