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