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| Patents for Elwin R. Hyde | |||||
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| Picture | Number | Date | Patentee | Title | |
| 405,706 | Jun. 25, 1889 | E.R. Hyde | Surface Grinding or Planing Machine | ||
| 694,101 | Feb. 25, 1902 | E.R. Hyde | Rotary Engine | ||
 | 1,133,475 | Mar. 30, 1915 | E.R. Hyde | Grinding Wheel | |
 | 1,525,994 | Feb. 10, 1925 | E.R. Hyde | Machine Drive | |
 | 1,553,167 | Sep. 08, 1925 | E.R. Hyde | Swing Frame Grinder | |
| 1,582,608 | Apr. 27, 1926 | E.R. Hyde | Sectional Grinding Wheel | ||
 | 1,589,855 | Jun. 22, 1926 | E.R. Hyde | Sectional Grinding Wheel | |