| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1851-05-13 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| AI97 | May 13, 1851 | J. O'Neil | Atmospheric churn | ||
| RE200 | May 13, 1851 | G.H. Corliss | Improvements in Cut-Off and Working the Valves of Steam Engines | steam engines | |
| 8,086 | May 13, 1851 | R. Bixby, C.S. Bixby, J. Garst | Planing-machine | wood planers | |