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| Patents for Jno. A. Dana | |||||
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| Number | Date | Patentee | Title | Type | |
| 17,531 | Jun. 09, 1857 | E.J. Worcester | Improved Adjustable Fork-Jaw Wrench | screw adjust wrenches | |
| 43,854 | Aug. 16, 1864 | C. Jillson | Combination Calipers and Dividers | calipers | |