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| All Patents in class 460/87 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,467 | Feb. 21, 1842 | A. Ralston | Grain Separator | corn and grain separators | |
| 5,509 | Apr. 11, 1848 | A. Smith | Grain Separator | corn and grain separators | |
| 9,341 | Oct. 19, 1852 | P. Geiser | Grain-separator | corn and grain separators | |
| 13,644 | Oct. 09, 1855 | P. Geiser | Grain-separator | corn and grain separators | |
| RE342 | Jan. 15, 1856 | A. Ralston | Grain Separator | corn and grain separators | |
| RE2,484 | Feb. 19, 1867 | P. Geiser | Improvement in grain separators | corn and grain separators | |