| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1823-07-16 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 3,726X | Jul. 16, 1823 | D. Hitchcock | Plough | plows | |
| 3,727X | Jul. 16, 1823 | J. Thompson (Thomson) | Rotary steam engine | rotary steam engines | |