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| Patents for Albert Perkins | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 41,966 | Mar. 15, 1864 | S.G. Twambley | Improved Lathe Rest for Truing Watch-Wheels | |
 | 99,698 | Feb. 08, 1870 | G.W. Hadley, T.C. Page | Improvement in Calipers | |