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| Patents Granted on 1828-08-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,191X | Aug. 16, 1828 | J. Laird | Printing press roller | printing presses | |
| 5,192X | Aug. 16, 1828 | B. Phillips | Hydraulic apparatus for propelling boats | nautical propulsion apparatus | |