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| Patents Granted on 1841-08-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| AI48 | Aug. 12, 1841 | D.H. Southworth | Cleaning rice, wheat, and other small grain | ||
| 2,227 | Aug. 21, 1841 | H. Allen | Cut-off valve for steam-engines | steam engine valve gear | |