| Patents Granted on 1852-04-__ |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 8,852 | Apr. 06, 1852 | W.C. Bronson | Reciprocating gang sawmill | reciprocating sawmills |
| 8,854 | Apr. 06, 1852 | J.W. Cochran | Stone-cutting machine | |
| 8,864 | Apr. 06, 1852 | J. Thompson | Thrashing Machine | threshers and thrashers |
| 8,866 | Apr. 06, 1852 | J. Urmy | Improvement in Seed-Planters | |
| NS-15 | Apr. 07, 1852 | R.N. McLellan | Ready guide for placing lumber to be sawn with circular saws | circular saw accessories |
| 8,868 | Apr. 13, 1852 | S. Andrews | Drop-Punch | drop hammers |
| 8,869 | Apr. 13, 1852 | W. Baker | Hinge | |
| 8,870 | Apr. 13, 1852 | R. Crosby, H.D. Edgcomb | Machine for tonguing boards | matchers |
| 8,872 | Apr. 13, 1852 | J. Hamilton | Reciprocating sawmill for cutting beveled pieces | reciprocating sawmills |
| 8,873 | Apr. 13, 1852 | J. Hamilton | Machinery for making casks | cooper |
| 8,878 | Apr. 13, 1852 | G.C. Taft | Double-Lever Box Opener | |
| 8,881 | Apr. 13, 1852 | J. Whitney | Feed apparatus of planing-machines | matchers |
| 8,882 | Apr. 20, 1852 | N. Blake | Submarine Auger | auger bits |
| 8,897 | Apr. 20, 1852 | F. Wilbar | Improved Reflecting Spirit Level and Square | levels |
