| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1817-02-22 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,742X | Feb. 22, 1817 | N. Reed | Threshing machine | miller | |
| 2,743X | Feb. 22, 1817 | B. Langdon | Steam applied to propel carriages and boats | steam traction engines | |