| All Patents in class 81 |
Patents 1 -
10
of 6845
      |
| Picture | Number | Date | Patentee | Title |
 | 6,271X | Dec. 14, 1830 | D. Cushing, J. Blake | Improved Bed Key |
 | 7,254X | Oct. 25, 1832 | H. King | Improvement in the Rack Wrench |
| | 8,260X | Jun. 14, 1834 | J. Sharp | Forge Arm Hammer |
 | 9,030X | Aug. 17, 1835 | S. Merrick | Improvement in screw wrench |
 | 730 | May 08, 1838 | G. Page | Hand drill |
 | 1,301 | Aug. 24, 1839 | H.W. Hewet | Improved Screw-Wrench |
 | 1,659 | Jun. 27, 1840 | H.W. Hewet | Screw Wrench |
 | 1,720 | Aug. 12, 1840 | J. Keane, T. Keane, S. Kane | Screw-Wrench |
 | 2,054 | Apr. 16, 1841 | L. Coes | Loring Coes Screw Wrench |
 | 2,165 | Jul. 10, 1841 | J. Brett | Improvement in Key-Wrenches |
