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| Patents for N. P. Nelson | |||||
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| Number | Date | Patentee | Title | Type | |
| 975,591 | Nov. 15, 1910 | W.A. Whitney | Mechanical movement | metal punching machines | |
| 1,072,767 | Sep. 09, 1913 | O.A. Nordlund | Wrench | screw adjust wrenches | |