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| Patents Granted on 1827-03-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,705X | Mar. 15, 1827 | J. Reynolds | Horizontal wind mill | wind power apparatus | |
| 4,706X | Mar. 15, 1827 | C. Chamberlin | Machine for cutting straw, shelling corn, etc. | hay or straw cutters | |
| 4,707X | Mar. 15, 1827 | J.C. Seely | Mode of making hatters' cards or jacks | trade specific | |
| 4,708X | Mar. 15, 1827 | J. Griffiths | Construction of the feet of brass andirons | ||