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| Patents for Grand Rapids School Equipment Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,185,000 | May 30, 1916 | G.F. Reinhard | Friction-gearing for lathes | |
| 1,195,345 | Aug. 22, 1916 | D.F. Ferney | Bench-vise | ||
 | 1,195,346 | Aug. 22, 1916 | D.F. Ferney | Vise | |
 | 1,239,027 | Sep. 04, 1917 | W.Y. Mentzer | Lathe-center | |