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| Patents Granted on 1837-05-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 210 | May 30, 1837 | E. Tracy, C.R. Harvey | Machine for hulling and scouring rice | grain hullers | |
| 213 | May 30, 1837 | M. Thomas | Winnowing grain | winnowing machines | |