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| All Patents in class 2/21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 88,708 | Apr. 06, 1869 | H.L. Hall | Corn Husker | corn huskers | |
| 126,565 | May 07, 1872 | S.H. Mitchell | Improvement in Corn Huskers and Pickers | corn huskers | |
| 136,157 | Feb. 25, 1873 | H.L. Hall | Hand Corn Huskers | corn huskers | |
| 549,748 | Nov. 12, 1895 | E.F. Rate | Husking Pin | miller | |
| 1,375,690 | Apr. 26, 1921 | L.W. George | Finger-guard | metalworking machine safety guards | |