| Patents Granted on 1817-05-__ |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 2,784X | May 02, 1817 | I.(. Scott | Metallic single valve pump box | pumps |
| 2,785X | May 03, 1817 | J.M. Dearborn | Pumps | pumps |
| 2,786X | May 03, 1817 | J. Webb | Rotary dry docks | |
| 2,787X | May 06, 1817 | W.P. Tilton | Pump | pumps |
| 2,788X | May 09, 1817 | J. Baker | Pump | pumps |
| 2,789X | May 12, 1817 | T. Cruttendon | Spinning wheel | spinner |
| 2,790X | May 16, 1817 | G. Jenkins | Machine for brads and sprigs | |
| 2,791X | May 16, 1817 | J. Beckwith | Teazling cloth | |
| 2,792X | May 17, 1817 | A. Blanchard | Trusses for ruptures | |
| GB-181,604,127 | May 22, 1817 | G. Manwaring | Improvements in steam engines | steam engines |
| 2,793X | May 23, 1817 | E. Leman | Horizontal circular valve pump spear | pumps |
| 2,794X | May 28, 1817 | S. Briggs | Steam as propelling power to mills | |
| 2,795X | May 29, 1817 | D. Peacock | Plough | plows |
| 2,796X | May 29, 1817 | B. King | Making holes in iron railing and horizontal plates and bars | |
| 2,797X | May 31, 1817 | S. Hopkins | Preparation of the flour of mustard | |
