| Patents Granted on 1804-02-?? |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 518X | Feb. 14, 1804 | O. Evans | Grinding Mill | miller |
| 519X | Feb. 14, 1804 | O. Evans | Steam Engine | steam engines |
| 520X | Feb. 17, 1804 | J. Staples, Jr. | Wind & Water Wheel | water wheels |
| 521X | Feb. 21, 1804 | I. Wood | In Setting Stills and Other Large Kettles | distilling |
| 522X | Feb. 21, 1804 | T. Barnett | Thresher | threshers and thrashers |
| 523X | Feb. 21, 1804 | T. Pierce | Smut Mill | smut mills |
| 524X | Feb. 24, 1804 | W.W. Hopkins | Improvement in Hanging Window Sashes | doors and windows |
| 525X | Feb. 27, 1804 | W.B. Dyer | Spinning Wheel | spinner |
| 526X | Feb. 27, 1804 | J. Worrell | Clover Huller | clover hullers |
| 527X | Feb. 29, 1804 | D.S. Dean | Cloth washing machine | washing machines |
