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| Patents for N. O. Pillsbury | |||||
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| Number | Date | Patentee | Title | Type | |
| 166,213 | Aug. 03, 1875 | T. McDonough | Improvement in car-starters | ||
| 173,802 | Feb. 22, 1876 | T. McDonough | Improvement in Calipers and Dividers | calipers | |
| 181,699 | Aug. 29, 1876 | T. McDonough | Improvement in Wrenches | quick adjust wrenches | |