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| Patents Granted on 1828-08-05 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,181X | Aug. 05, 1828 | W. Knight | Raising and lowering canal boats on inclined planes | inclined planes | |
| 5,182X | Aug. 05, 1828 | M. Barney | Thrashing machine | miller | |