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| All Patents in class 209/394 | |||||
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| Number | Date | Patentee | Title | Type | |
| 73,485 | Jan. 21, 1868 | S. Adams | Improvement in winnowing-mills | winnowing machines | |
| 694,496 | Mar. 04, 1902 | W.N. Rumely | Adjustable Screen | separators | |
| 747,231 | Dec. 15, 1903 | W.N. Rumely | Sieve and Riddle for Separators | corn and grain separators | |
| 870,302 | Nov. 05, 1907 | W.F. MacGregor | Sieve for Threshing Machines | sieves and screens | |