| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1822-01-19 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 3,436X | Jan. 19, 1822 | A. Thayer, Jr., J. Lansing, Jr. | Rotary shifting piston steam engine | steam engines | |
| 3,437X | Jan. 19, 1822 | R. Prouty | Drawing card and other wire | ||