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| Patents Granted on 1830-04-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,924X | Apr. 20, 1830 | P. Boynton | Water wheel | water wheels | |
| 5,925X | Apr. 20, 1830 | A. Curtis | Machine for Manufacturing Butter | butter | |
| 5,926X | Apr. 20, 1830 | W. Sherwood | Taking figures of ingrain carpeting | carpets | |
| NX-5,927 | Apr. 20, 1830 | U. Whitley | Saw Mill | sawmills | |
| 5,927X | Apr. 20, 1830 | J. Stondenburgh, J. Foster | Manufacturing woollen garments without spinning or weaving | garments | |