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US Patent: 206,665
Power Hammer
Patentee: Columbus W. Corr (exact or similar names) - Carlinville, Macoupin County, IL USPTO Classifications: 72/433, 72/441, 72/448 Tool Categories: metalworking machines : forging machines : drop hammers Assignees: None Manufacturer: Columbus W. Corr - Carlinville, Macoupin County, IL Witnesses: Unknown	Patent Dates: Applied: Sep. 00, 1877 Granted: Aug. 06, 1878 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Columbus W. Corr

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