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| Patents for Springfield Glue & Emery Wheel Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
| 285,626 | Sep. 25, 1883 | D.B. Hyde | Grinding Wheel Frame | ||
| 375,821 | Jan. 03, 1888 | A. Vallentine, E.R. Hyde | Grinding Machine | ||