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| All Patents in class 241/222 | |||||
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| Number | Date | Patentee | Title | Type | |
| 682,157 | Sep. 10, 1901 | D.L. Adelsperger | Grinding or Crushing Mill. | grinding mills | |
| 1,094,557 | Apr. 28, 1914 | C.F. Haldaman | Feeding mechanism for ensilage-cutters | animal food preparation machinery | |
| 1,129,349 | Feb. 23, 1915 | C.F. Haldeman | Ensilage-cutter | animal food preparation machinery | |