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| Patents Granted on 1832-02-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,939X | Feb. 20, 1832 | S. Costill | Steam and power engine | oscillating steam engines | |
| 6,940X | Feb. 20, 1832 | J. Hawkins | Machine for cutting leather visors for caps | leatherworker | |