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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:
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