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| All Patents in class 416/86 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,400 | Dec. 23, 1841 | T.J. Wells | Improvement in the manner of constructing and of propelling steamboats, denominated the "buoyant spiral propeller" | steamboats | |
| 4,125 | Jul. 26, 1845 | R.C. Grant | Tide Mill | tide mills | |