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| Patents Granted on 1825-04-02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,074X | Apr. 02, 1825 | J. Thomas | Dowelling bit, used in ship building | shipwright | |
| NX-182,504,021 | Apr. 02, 1825 | N.A. Stoddard | Traverse Springs | wagon maker | |