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US Patent: 140,257
Improvement in mortising-machines Chain mortising machine
Patentee: John Driver (exact or similar names) - Marysville, CA USPTO Classifications: 144/72 Tool Categories: woodworking machines : joint making machines : mortising machines woodworking machines : wood drilling and boring : mortising machines Assignees: None Manufacturer: Not known to have been produced Witnesses: G. B. Harnish H. B. Williamson	Patent Dates: Applied: Apr. 10, 1873 Granted: Jun. 24, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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