| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1828-02-21 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 5,011X | Feb. 21, 1828 | G. Dickinson | Preparing cotton yarn wicks for candles | chandler | |
| 5,012X | Feb. 21, 1828 | J. Kelly | Spiral water wheel | water wheels | |