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| Patents for William Greenleaf | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,212 | Aug. 11, 1843 | E.G. Matthews | Vise | bench vises | |
| 7,881 | Jan. 07, 1851 | J.M. Armsby | Corn Sheller | corn shellers | |
| 16,900 | Mar. 24, 1857 | G.C. Taft | Feeding Drill-Shafts | horizontal drilling machines | |
| 29,512 | Aug. 07, 1860 | E.W. Nichols | Holder for Polishing-Wheels | bench or pedestal grinders | |
| 75,498 | Mar. 10, 1868 | W.H. Warren | Planer's Chuck | metal planer accessories | |
| 79,877 | Jul. 14, 1868 | W. Thompson | Lathe Rest | engine lathes | |