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US Patent: 987,479
Expansion cutter-head
Patentee: Harrison J. Mitchell (exact or similar names) - Beloit, WI USPTO Classifications: 144/130, 144/218, 144/230, 144/234, 144/91.2 Tool Categories: woodworking machines : machine and tool cutters : cutterheads Assignees: Berlin Machine Works - Beloit, WI Manufacturer: Berlin Machine Works - Beloit, WI Witnesses: Unknown	Patent Dates: Granted: Mar. 21, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Berlin Machine Works

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