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US Patent: 173,122
Improvement in rotary cutter-heads
Patentee: Samuel C. Houghton (exact or similar names) - Little Falls, NY USPTO Classifications: 144/240 Tool Categories: woodworking machines : machine and tool cutters : cutterheads Assignees: None Manufacturer: Not known to have been produced Witnesses: B. K. Houghton D. B. Chase	Patent Dates: Applied: Jun. 28, 1875 Granted: Feb. 08, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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