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| Patent CS43 | |||||
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| Number | Date | Patentee | Title | Type | |
| 43 | Oct. 11, 1836 | N. Alvord, E. Alvord | Lathe for turning, &c. | wood lathes | |
| RX-43 | Jul. 08, 1842 | T. Allen | Improvement in Machines for Making Coopers' Rivets and Other Rivets | rivet making machines | |
| NS-43 | Oct. 12, 1858 | B. Robbins | Improved pumps | nautical pumps | |
| CS-43 | Nov. 11, 1861 | T. Moore | Plough | plows | |