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| All Patents in class 99/529 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,720X | Aug. 23, 1831 | H. Weed, S. Fellows | Smut machine for mills | miller | |
| 9,728X | Jun. 16, 1836 | L. Cole | Hulling rice | miller | |
| 79,791 | Jul. 07, 1868 | R. Ward | Smut Mill | smut mills | |