![]() | |||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1842-04-23 | |||||
| Number | Date | Patentee | Title | Type | |
| 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. | ||