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| Patents Granted on 1816-09-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,669X | Sep. 12, 1816 | E. Treadwell | Air conducting bricks for stoves | brick maker | |
| 2,670X | Sep. 12, 1816 | W. Annesley (Annesly) | Mode of building boats and sea vessels | boats and ships | |