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| Patents for Carmi Hart | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,269 | Apr. 03, 1849 | N. Washburn, C. Hart | Cast-iron car-wheel | railroad car wheels | |
| 10,739 | Apr. 04, 1854 | C. Hart | Machine for cutting veneers | veneer machines | |