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US Patent: 72,639
Improvement in machines for sawing barrel-heading
Patentee: Calvin J. Holman (exact or similar names) - Chicago, IL USPTO Classifications: 144/117.1, 144/39 Tool Categories: woodworking machines : specialty woodworking machines : barrel making machines trade specific : cooper Assignees: None Manufacturer: Not known to have been produced Witnesses: L. L. Coburn W. E. Marrs	Patent Dates: Granted: Dec. 24, 1867 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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