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US Patent: 32,137
Steam Plow
Improvement in Rotary Spading-Machines
Patentee:
Donald Mann (exact or similar names) - Rochester, NY

USPTO Classifications:
111/42, 172/542

Tool Categories:
agricultural : plows

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
S. D. Law
John C. Wilson
Patent Dates:
Granted: Apr. 23, 1861

Patent Pictures:
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