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| All Patents in class 475/28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 13,634 | Oct. 09, 1855 | C. Bishop | Corn Sheller | corn shellers | |
| 168,955 | Oct. 19, 1875 | J.B. Annin | Differential Gear for Traction Engines | traction engine propulsion components | |