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US Patent: 145,142
Improvement in hub-boring machines
Patentee: David B. Wright (exact or similar names) - South Amesbury, MA USPTO Classifications: 269/228 Tool Categories: trade specific : wheelwright metalworking machines : drilling and boring Assignees: Cynthia A. Wright - South Amesbury, MA Manufacturer: Not known to have been produced Witnesses: Edward F. Adams Joseph K. Jenness	Patent Dates: Applied: Oct. 11, 1873 Granted: Dec. 02, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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