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| Patents for David Williams | |||||
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| Number | Date | Patentee | Title | Type | |
| 29,673 | Aug. 21, 1860 | G. Danforth | Corn Sheller | corn shellers | |
| 300,194 | Jun. 10, 1884 | M.E. Beasley, E.M. Hugentobler | Barrel stave shaping machine | barrel making machines | |