| All Patents in class 241/56 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 6,902 | Nov. 27, 1849 | S. Hughes, C. Learned | Improvement in machinery for dressing flour | |
| 227,316 | May 04, 1880 | H.D. Stover | Machine for cutting and conveying wood shavings | waste collection mechanisms |
| 733,289 | Jul. 07, 1903 | E.W. Silver | Ensilage machine | animal food preparation machinery |
| 1,129,349 | Feb. 23, 1915 | C.F. Haldeman | Ensilage-cutter | animal food preparation machinery |
| 2,624,460 | Jan. 06, 1953 | G.A. Parten | Gas separator for grinding mills | corn and grain separators |
| 4,325,163 | Apr. 20, 1982 | D.A. Milliken, G.M. Zink, C.A. Mattson | Portable blower-vacuum unit | blowers |
