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US Patent: 144,187
Improvement in machines for cutting the heads of fence-pickets
Patentee: Andrew Burnham (exact or similar names) - Revere, MA USPTO Classifications: 144/146, 144/30 Tool Categories: woodworking machines : specialty woodworking machines : stick pointing machines woodworking machines : cutter head machines : wood shapers Assignees: None Manufacturer: Not known to have been produced Witnesses: Thomas W. Porter William W. Burrage	Patent Dates: Applied: May 24, 1873 Granted: Nov. 04, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: This machine forms the tops of fence-pickets into a Gothic arch shape, using a vibrating knife that travels through a circular arc.

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