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| Patents for Andrew Ralston | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,467 | Feb. 21, 1842 | A. Ralston | Grain Separator | corn and grain separators | |
| 9,977 | Aug. 30, 1853 | A. Ralston | Sawmill | reciprocating sawmills | |
| RE342 | Jan. 15, 1856 | A. Ralston | Grain Separator | corn and grain separators | |