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| Patents Granted on 1839-09-25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,337 | Sep. 25, 1839 | C. Whitsitt | Rotary Saw for Cutting Round Tenons, &c. | hollow bits | |
| 1,342 | Sep. 25, 1839 | J.B. Bellemere | Mode of Squaring and Finishing the Heads of Bolts, Nut and Other Plain Similar Surfaces | lathe tools | |