| Patents Granted on 1821-09-?? |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 3,378X | Sep. 01, 1821 | W.(. Cummings (Cumings) | Straw Cutting Machine | hay or straw cutters |
| 3,379X | Sep. 05, 1821 | T. Morgan | Machine for cutting and heading nails | nail making machines |
| 3,380X | Sep. 12, 1821 | H.F. Fisher | Apparatus for distilling | distilling apparatus |
| 3,381X | Sep. 13, 1821 | W. Falconner | Cast iron plough | plows |
| 3,382X | Sep. 15, 1821 | M. Morrison | Threshing and rice cleaning machine | miller |
| 3,383X | Sep. 15, 1821 | G. Thompson | Improvement on Perkins' and Reed's nail machine | nail making machines |
| 3,384X | Sep. 22, 1821 | I. Jennings | Repeating rifle | rifles |
| 3,385X | Sep. 24, 1821 | J. Bliss | Improvement in cocks for drawing liquor | |
| 3,386X | Sep. 26, 1821 | D.M. Randolph | Water cement | |
| GB-182,104,593 | Sep. 28, 1821 | W.B. Congreve | Extension of Improved Methods of Generating and Applying Steam | steam engines |
| 3,387X | Sep. 29, 1821 | F. Fuller | Machinery used in making candles | candle making machinery |
