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| Patents for David Bookwalter | |||||
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| Number | Date | Patentee | Title | Type | |
| 83,033 | Oct. 13, 1868 | D. Bookwalter | Corn Husker | corn huskers | |
| 90,230 | May 18, 1869 | D. Bookwalter | Corn Husker | corn huskers | |