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| Patents Granted on 1849-03-27 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,221 | Mar. 27, 1849 | N.C. Sanford | Means of auger manufacture | auger bits | |
| 6,226 | Mar. 27, 1849 | E.W. Carpenter | Regulating the Throat and Adjusting Plane Irons | plane throat adjustments | |
| 6,235 | Mar. 27, 1849 | D. Woodbury | Improvement in Grain Separators | corn and grain separators | |
| 6,237 | Mar. 27, 1849 | J.J. Couch | Machinery for drilling rocks | mining apparatus | |