| Patents Granted on 1842-04-?? |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| AI51 | Apr. 01, 1842 | L. Bachelder, S.H. Bachelder | Planter for corn, etc. | |
| AI52 | Apr. 01, 1842 | R.S. Brown | Whip | |
| 2,531 | Apr. 01, 1842 | G. Henning | Self-setting cog for sawmills | sawmill dogs |
| 2,566 | Apr. 16, 1842 | J. Sheffield | Method of setting logs for sawing boards | sawmill carriages |
| 2,581 | Apr. 23, 1842 | J.H. Burrows | Millstone | corn grinders |
| 2,583 | Apr. 23, 1842 | S. Widerman | Machine for Chamfering, Beveling, and Howeling Barrels, &c. | |
| 2,592 | Apr. 29, 1842 | B. Crane, J. Milholland | Bee-hive | apiary apparatus |
