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| All Patents in class 209/391 | |||||
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| Number | Date | Patentee | Title | Type | |
| 543,710 | Jul. 30, 1895 | M.L. Tate | Coal Shovel | shovels | |
| 747,906 | Dec. 22, 1903 | W.W. Dingee | Threshing Machine | threshers and thrashers | |