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| All Patents in class 241/89.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,804X | May 02, 1835 | W. Denson | Straw cutter and corn sheller | hay or straw cutters | |
| 200,361 | Feb. 12, 1878 | S.R. Thompson | Improvement in bark-cutting machines | bark processing machines | |
| 1,394,725 | Oct. 25, 1921 | O.C. Frick | Comminuting attachment for feed-cutters | ||