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US Patent: 200,448
Improvement in circular-saw mills
Patentee: Francis C. Frost (exact or similar names) - Anoka, MN USPTO Classifications: 74/535, 83/403.1, 83/426 Tool Categories: woodworking machines : circular saws : circular sawmills woodworking machines : sawmills : circular sawmills Assignees: Francis C. Frost - Anoka, MN Joseph E. Craig - Anoka, MN Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 07, 1877 Granted: Feb. 19, 1878 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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