| Patents Granted on 1830-05-20 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 5,968X | May 20, 1830 | W. Berkley | Distilling by steam | distilling apparatus |
| 5,969X | May 20, 1830 | J. Brown | Spinning machine called the universal spinner | spinner |
| 5,970X | May 20, 1830 | J. Butts | Machine for thrashing rice | threshers and thrashers |
| 5,971X | May 20, 1830 | C.B. Goodrich | Machine for jointing staves | cooper |
| 5,972X | May 20, 1830 | D. Hyde | Fountain pen | household tools |
| 5,973X | May 20, 1830 | I. Jennings | Lamp for burning tallow and other fatty substances | lamps |
| 5,975X | May 20, 1830 | M. Metee | Pumps | pumps |
| 5,976X | May 20, 1830 | M.B. Poitiaux | Machinery for mills | miller |
| 5,977X | May 20, 1830 | P. Phillips | Manufacturing tubs | cooper |
| 5,979X | May 20, 1830 | J. Rich, Jr. | Flax and hemp machine | flax and hemp machines |
| 5,980X | May 20, 1830 | C.P. Seabury | Piano forte | music instrument maker |
| 5,981X | May 20, 1830 | C. Varle | Self instructor | teacher |
