| All Patents in class 241/257.1 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
 | 1,726X | May 12, 1812 | P. Geiger | Breaking plaster of paris |
| | 4,504X | Jul. 31, 1826 | J. Webster | Machine for grinding shelled corn |
| | 4,748X | May 14, 1827 | A. Holcomb | Paint mill |
| | 5,145X | Jun. 19, 1828 | J. Crail | Grist mill |
| | 5,334X | Jan. 14, 1829 | D.D. Demarest | Machine for grinding apples |
| | 5,381X | Mar. 03, 1829 | S. Cook | Trumpet mouthed mill for grinding paints |
 | 5,696X | Oct. 31, 1829 | J. Reeder | Bark mill |
| | 6,966X | Mar. 15, 1832 | O.C. Harris | Machine for grinding indigo paints, etc. |
| | 7,103X | Jun. 04, 1832 | A. Bacon | Grist mill |
| | 7,814X | Nov. 19, 1833 | R. Kendall | Grist mill |
