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| Patents for Charles Alexander | |||||
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| Number | Date | Patentee | Title | Type | |
| 36,389 | Sep. 09, 1862 | C. Ball | Improvement in Hammers | hammers | |
| 78,863 | Jun. 16, 1868 | M.C. Cronk | Grinding Harvester Knives | tool grinders | |