| All Patents in class 241/221 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 7,393X | Jan. 26, 1833 | S. Watrous | Grinding white lead and Paris white | manufacturing potash |
| 8,724X | Mar. 27, 1835 | S. Graham | Machine for extracting hair from fur skins | |
| 9,396X | Feb. 13, 1836 | A. Henkel | Cutting sausage meat | |
| RE7,264 | Aug. 15, 1876 | S.R. Thompson | Improvement in machines for rossing and grinding bark | bark processing machines |
| 210,095 | Nov. 19, 1878 | W. Chicken | Improvement in bark-reducing machines | bark processing machines |
| 526,043 | Sep. 18, 1894 | W. Merrill | Wood-cutting machine | wood grinding machines |
| 777,779 | Dec. 20, 1904 | H.G. Dittbenner | Sawmill-hog | wood grinding machines |
| 1,672,544 | Jun. 05, 1928 | G.W. Rynders | Feed Mill | animal food preparation machinery |
| 2,065,677 | Dec. 29, 1936 | G.O. Leopold, T.J. Fegley | Machine for breaking cubes of ice | |
| 2,195,363 | Mar. 26, 1940 | G.O. Leopold, T.J. Fegley | Ice crusher | |
