| All Patents of Type: material grinding machines |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 5,475X | May 01, 1829 | I. Johnson, Jr. | For a machine to be used as a Hemp and Flax Dresser; as a Grain Thrasher; as a Grinder of Grain, Plaster, Paints, Barks, Dye-woods, and other hard substances; as a Cider and Clover Mill, and a Hulling Machine for Barley, Oats, Rice, &c. &c. | grinding mills |
| 336,618 | Feb. 23, 1886 | A. Barbendreier | Tritulator | material grinding machines |
| 427,477 | May 06, 1890 | J.H. Lawles | Machine for Grinding Pearls Ivory Etc | material grinding machines |
| 441,570 | Nov. 25, 1890 | R.B. Leighton | Lens Grinding Machine | material grinding machines |
| 2,279,219 | Apr. 07, 1942 | L.R. Baker, A.D. Baker | Material Grinding Machine | material grinding machines |
