| Patents Granted on 1812-03-__ |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 1,677X | Mar. 02, 1812 | W. Richards | Thrashing machine | miller |
| 1,678X | Mar. 04, 1812 | D. Waldron | Extracting icthyocalla or fish glues | |
| FX-1,678 | Mar. 04, 1812 | E. Thayer | Machine for making boots and shoes | shoe and boot making machines |
| 1,679X | Mar. 05, 1812 | J. Owings | Preparing flax and hemp to be spun | flax and hemp machines |
| 1,680X | Mar. 09, 1812 | J. Newall | Machine for cutting and heading nails | nail making machines |
| 1,681X | Mar. 11, 1812 | J. Hunt | Steam boat to be propelled by sculling | nautical propulsion apparatus |
| FX-1,681 | Mar. 12, 1812 | M. Battle | Steam boat to be propelled by sculling | steamboats |
| 1,682X | Mar. 14, 1812 | N. Jones | Spinning machine for hemp and flax | flax and hemp machines |
| 1,684X | Mar. 16, 1812 | J. Heavin | Machine for dressing shingles | shingle machines |
| 1,685X | Mar. 16, 1812 | S. Clements | Spinning machine for wool | spinner |
| 1,686X | Mar. 17, 1812 | C. Hunt | Grates | |
| 1,687X | Mar. 19, 1812 | J. Goulding | Thrashing machine | miller |
| 1,688X | Mar. 19, 1812 | G.M. Broun (Brown) | Machine for separating grain and seeds by rubbing | miller |
| 1,689X | Mar. 27, 1812 | D. Shoemaker | Fire Extinguisher and Chimney Regulator | fire extinguishers |
| 1,690X | Mar. 27, 1812 | M. Battle | Steamboat propelled by poles | steamboats |
