| Patents Granted on 1830-05-22 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 5,986X | May 22, 1830 | J. Church, Jr. | Spinning machine called the long band | spinner |
| 5,987X | May 22, 1830 | J. Copley | Spiral propeller for boats | nautical propulsion apparatus |
| 5,988X | May 22, 1830 | W. Haggerty, C. Lawrence, T. Fraser | Portable cooking furnace | household tools |
| 5,989X | May 22, 1830 | R. Kingsbury | Screw cog for shives of ship blocks | blocks and wedges |
| 5,990X | May 22, 1830 | J.L. Neill, J. Ronaldson | Foundation of marine railway | |
| 5,991X | May 22, 1830 | T.W. Sumter | Washing gold and separating alluvial | ore processing apparatus |
| 5,992X | May 22, 1830 | T.R. Williams | Felt for bottoms of vessels and other purposes | felt making machines |
