| All Patents in class 241/280 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 5,417X | Apr. 01, 1829 | L. Rice | Machine for Cutting Straw and Thrashing Grain | hay or straw cutters |
| 532 | Dec. 26, 1837 | A. McMillan | Machine for reducing and cutting dye woods and bark | bark processing machines |
| 144,354 | Nov. 04, 1873 | M.S. Otis, M.E. Otis | Improvement in wood-grinders for paper-pulp | wood grinding machines |
| 202,097 | Apr. 09, 1878 | W.A. Doane | Improvement in machines for making paper-pulp from wood | paper making machines |
| 242,308 | May 31, 1881 | T. Hanvey | Apparatus for grinding wood pulp | manufacturing paper |
| 2,282,887 | May 12, 1942 | F.W. Roberts | Wood Grinding Machine | wood grinding machines |
| 5,143,311 | Sep. 01, 1992 | J.E. Laster | Wood shavings forming apparatus and cutting roll adapted for use therewith | excelsior machines |
