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| All Patents in class 241/241 | |||||
| Number | Date | Patentee | Title | Type | |
| 8,061X | Mar. 10, 1834 | B. Hinkley | Grinding grain or cracking corn by hand or horse power | miller | |
| 1,672,544 | Jun. 05, 1928 | G.W. Rynders | Feed Mill | animal food preparation machinery | |