| All Patents in class 241/157 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 2,459 | Feb. 12, 1842 | W. Murray, J. Murray | Machine for breaking and grinding corn and corncobs |
| | 5,533 | Apr. 25, 1848 | A.P. Norton | Mill for Crushing and Grinding |
| | 79,630 | Jul. 07, 1868 | R. Coward, J. Bingham | Improved Rock-Crusher and Tempering-Machine |
 | 220,626 | Oct. 14, 1879 | W.D. Leavitt | Improvement in machines for manufacturing flour |
| | 359,588 | Mar. 15, 1887 | J.F. Winchell | Crushing and Grinding Mill |
| | 416,204 | Dec. 03, 1889 | J.F. Winchell | Crushing and Grinding Mill |
 | 1,074,844 | Oct. 07, 1913 | A.M. Dellinger | Grinding and crushing mill |
