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| Patents for Albert Sperry | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 448,863 | Mar. 24, 1891 | G.E. Neuberth | Surface Gage | |
 | 517,612 | Apr. 03, 1894 | H.J. Hendey | Suspension Metal Shaper | |
 | 517,613 | Apr. 03, 1894 | H.J. Hendey | Combination Metal Shaper | |