| Patents Granted on 1849-04-?? |
Patents 1 -
15
of 39
      |
| Number | Date | Patentee | Title | Type |
| 6,249 | Apr. 03, 1849 | W.H. Derick, C.A. Spring | Planing machine | wood planers |
| 6,253 | Apr. 03, 1849 | E. Webber, C. Hartshorn | Machinery for turning lasts and other irregular figures from reverse patterns | pattern lathes |
| 6,256 | Apr. 03, 1849 | W.T. Barnes | Auger Stock | auger handles |
| 6,258 | Apr. 03, 1849 | E. Clark | Saw | sawblades |
| 6,259 | Apr. 03, 1849 | A.G. Dewey, R. Daniels | Machinery for picking wool, &c | wool pickers |
| 6,260 | Apr. 03, 1849 | E. Perry, S. Pasco | Boot Crimp | cobbler |
| 6,261 | Apr. 03, 1849 | D.H. Chamberlain | Improvements in Tool-Sockets and Awl-Hafts | tool holders |
| 6,269 | Apr. 03, 1849 | N. Washburn, C. Hart | Cast-iron car-wheel | railroad car wheels |
| 6,274 | Apr. 03, 1849 | H.R. Worthington, W.H. Baker | Method of insuring the action of the valves in the direct-action pumping-engines | steam pumps |
| 6,277 | Apr. 03, 1849 | S. Kendall | Punching-machine | metal punching machines |
| 6,281 | Apr. 10, 1849 | W. Hunt | Safety pin | sewing tools |
| 6,283 | Apr. 10, 1849 | P. Bryant | Instrument for drawing spikes | nail extractors |
| 6,294 | Apr. 10, 1849 | H. Knowles | Planing-machine | wood planers |
| 6,296 | Apr. 10, 1849 | L. Stockwell | Machinery for dressing shingles | shingle machines |
| 6,301 | Apr. 10, 1849 | F.J. Laubereau | Air Engine | hot air engines |
