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US Patent: 379,076
Hinge-Mortiser
Patentee: James M. Mathews (exact or similar names) - Minneapolis, MN USPTO Classifications: 30/167.1 Tool Categories: woodworking tools : chisels : firmer chisels layout tools : marking gauges : butt gauges Assignees: Rufus P. Mathews - Minneapolis, MN Manufacturer: Unknown Witnesses: R. H. Sanford S. J. Beardslee J. Jessen	Patent Dates: Applied: Nov. 08, 1887 Granted: Mar. 06, 1888 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This is a hinge mortising tool that works by setting the knives to the side of the hinge and striking it with a hammer.

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