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| Patents for Henry I. Snell | |||||
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| Number | Date | Patentee | Title | Type | |
| 17,343 | May 19, 1857 | H.D. Stover | Rotary planing-cutter | cutterheads | |
| 587,370 | Aug. 03, 1897 | H.N. Middleton | Exhauster-hood | waste collection mechanisms | |