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| All Patents in class 209/329 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,410 | Jan. 06, 1848 | J. Thurston | Grain Winower | grain hullers | |
| 34,605 | Mar. 04, 1862 | G. Westinghouse, Sr. | Improvement in grain and seed winnowers | winnowing machines | |