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US Patent: 213
Winnowing grain
Patentee:
Markwell Thomas (exact or similar names) - Alfred, York County, ME

USPTO Classifications:
28/179, 99/528, 99/605

Tool Categories:
agricultural : winnowing machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas K. Dodge
John Anderson
Patent Dates:
Granted: May 30, 1837

Patent Pictures:
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