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US Patent: 133,922
Improvement in saw-mills
Patentee: William S. Colwell (exact or similar names) - Pittsburgh, PA USPTO Classifications: 83/780 Tool Categories: woodworking machines : reciprocating saws : reciprocating sawmills woodworking machines : sawmills : reciprocating sawmills Assignees: None Manufacturer: Not known to have been produced Witnesses: A. C. Johnston James J. Johnston	Patent Dates: Granted: Dec. 17, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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