| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1822-04-19 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 3,499X | Apr. 19, 1822 | J. Justin | Machine for washing and for grinding | washing machines | |
| 3,500X | Apr. 19, 1822 | R. Hyde | Machine for making pails | ||
| 3,501X | Apr. 19, 1822 | E. Skinner | Fender for fire places | ||
| 3,502X | Apr. 19, 1822 | J.M. Merrow, R. McKee, Jr. | Making gunpowder | ||