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| Patents for Nelson Crawford | |||||
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| Number | Date | Patentee | Title | Type | |
| 13,696 | Oct. 23, 1855 | J. Bell | Dovetailing-machine | dovetailing machines | |
| 29,051 | Jul. 10, 1860 | J. Bell | Method of operating the cutter in dovetailing-machines | dovetailing machines | |