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| Patents Granted on 1828-08-13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,187X | Aug. 13, 1828 | H. Case | Propelling vessels with horizontal wheels | ||
| 5,188X | Aug. 13, 1828 | C. Lanuza | Method of ruling paper | ruling machines | |