| Patents Granted on 1831-11-?? |
Patents 1 -
15
of 36
      |
| Number | Date | Patentee | Title | Type |
| 6,819X | Nov. 02, 1831 | W. Brown | Tanning apparatus removing the bark from the letches by means of water | |
| 6,820X | Nov. 02, 1831 | E. Burgonzio | Tricylindric machine operating by water fall | |
| 6,821X | Nov. 02, 1831 | S. Krauser | Wheels for railroad cars to prevent friction | |
| 6,822X | Nov. 03, 1831 | F. Bush, of, C. Bent | Composition for stiffening hats | |
| 6,823X | Nov. 03, 1831 | R.H. Burk, E. Shaw | Axes manufactory | making axes |
| 6,824X | Nov. 04, 1831 | A. Conwell | Tan yard | |
| 6,825X | Nov. 04, 1831 | W.A. Parker | Cure for gout and rheumatism | |
| 6,826X | Nov. 07, 1831 | R. Cromelin | Matresses, sofas, etc. | |
| 6,827X | Nov. 07, 1831 | H. Spencer | Thrashing machine | threshers and thrashers |
| 6,828X | Nov. 07, 1831 | O. Tufts | Strengthening toggle joint in the hand press | printer |
| 6,829X | Nov. 08, 1831 | O. Allen | Rotary or pump steam engine | rotary steam engines |
| 6,830X | Nov. 08, 1831 | M. Mason | Iron borings rendered available in furnaces | industrial furnaces |
| 6,831X | Nov. 08, 1831 | D.L. Tuthill | Furnace for heating hatter's irons | industrial furnaces |
| 6,832X | Nov. 09, 1831 | J.L. Sullivan | Cemented pavement | |
| 6,833X | Nov. 10, 1831 | J. Dawkins | Thrashing machine | threshers and thrashers |
