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US Patent: 393,880
Gage-Chisel for Cutting Hinge-Recesses
Patentee: Aaron Thomas Binkerd (exact or similar names) - Allegheny, PA USPTO Classifications: 30/167.1, 30/167.2, 30/293 Tool Categories: woodworking tools : chisels : firmer chisels layout tools : marking gauges : butt gauges Assignees: Duncan C. White - Pittsburgh, PA Manufacturer: Not known to have been produced Witnesses: Frank Liggett Arthur Wessel John M. Deemer C. Sedgewick	Patent Dates: Applied: Mar. 16, 1888 Granted: Dec. 04, 1888 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This is an unusual combination of chisel and butt gage that allows the carpenter to mark and cut the edges of the hinge mortise in one operation.

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