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| Patents Granted on 1827-08-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,851X | Aug. 17, 1827 | A. Pratt | Machine for removing stumps and other heavy fixed bodies | stump elevators | |
| 4,852X | Aug. 17, 1827 | W.P. Wing | Steam engine | steam engines | |