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| All Patents in class 209/393 | |||||
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| Number | Date | Patentee | Title | Type | |
| 140,886 | Jul. 15, 1873 | G. Claflin | Potato Screens | potato screens | |
| 166,743 | Aug. 17, 1875 | H. Bolthoff | Improvement in wet and dry ore crushers | ore processing apparatus | |
| 1,155,019 | Sep. 28, 1915 | H. Tscherning | Molding-machine | ||
| 1,175,019 | Mar. 14, 1916 | J.K. Sharpe, Jr. | Grain-Saving Device for Threshing-Machines | threshers and thrashers | |