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| Patents Granted on 1808-08-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 928X | Aug. 31, 1808 | S. Gragg | Elastic chair | chairs | |
| 929X | Aug. 31, 1808 | S. Prince | Machine for pressing straw or chip hats | milliner | |
| 930X | Aug. 31, 1808 | S. Winchester | Washing and churning machine | washing machines | |