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US Patent: 155,222
Improvement in pile-cutters
Patentee: George H. Cavanagh (exact or similar names) - Boston, MA USPTO Classifications: 83/491 Tool Categories: woodworking machines : circular saws Assignees: None Manufacturer: Not known to have been produced Witnesses: C. Warren Brown M. W. Frothingham	Patent Dates: Applied: Apr. 25, 1874 Granted: Sep. 22, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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