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| Patents Granted on 1817-03-03 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,746X | Mar. 03, 1817 | L. Hedge | Revolving ruler | rules | |
| 2,747X | Mar. 03, 1817 | S. Whitlock | Straw and fodder cutting machine | hay or straw cutters | |
| 2,748X | Mar. 03, 1817 | M. Mallory | Water power, applied to machinery | ||
| 2,749X | Mar. 03, 1817 | J. Brown | Grammatical key | ||
| 2,750X | Mar. 03, 1817 | G. Troost | Mode of making alum from lignite | ||