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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. |