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| Patents for N. B. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 39,880 | Sep. 15, 1863 | N.B. Brown | Improved sawing machine | firewood machines | |
| 45,580 | Dec. 27, 1864 | N.B. Brown | Improvement in sawing machines | firewood machines | |