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US Patent: 452,820
Portable chain mortising machine
Patentee: Homas N. Wilson (exact or similar names) - Hickman, IL USPTO Classifications: 144/73 Tool Categories: woodworking machines : joint making machines : mortising machines woodworking machines : wood drilling and boring : mortising machines Assignees: Alonzo J. Hall - Milford, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: May 26, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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