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US Patent: 43,933
Improvement in machines for dressing heads to barrels
Patentee: William Trapp (exact or similar names) - Elmira, NY USPTO Classifications: 144/117.1, 144/125, 144/128, 144/225 Tool Categories: trade specific : cooper Assignees: None Manufacturer: Wm. Trapp & Co. - Elmira, NY Witnesses: Daniel Rowland J. Franklin Reigart	Patent Dates: Granted: Aug. 23, 1864 Antedated: Aug. 16, 1864 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Wm. Trapp & Co.

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