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| Patents for Elijah F. Render | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,301,582 | Nov. 10, 1942 | E.F. Render | Truing Mechanism | grinding machines | |
| 2,855,729 | Oct. 14, 1958 | E.F. Render | Grinding Machine | centerless grinders | |
| 2,950,580 | Aug. 30, 1960 | E.F. Render | Centerless Grinding Machine for Tapered Work Pieces | centerless grinders | |
| 3,079,741 | Mar. 05, 1963 | E.F. Render | Method for Grinding | centerless grinders | |
| 3,115,729 | Dec. 31, 1963 | E.F. Render | Centerless Grinding Machine | centerless grinders | |