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US Patent: 870,302
Sieve for Threshing Machines
Patentee:
Wallace F. MacGregor (exact or similar names) - Racine, Racine County, WI

USPTO Classifications:
209/319, 209/394, 209/408

Tool Categories:
agricultural : sieves and screens
agricultural : threshers and thrashers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 17, 1905
Granted: Nov. 05, 1907

Patent Pictures:
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