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| Patents for Carroll H. Drury | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,578,531 | Dec. 11, 1951 | C.H. Drury, E.V. Flanders | Machine for Grinding Impeller Bucket Shanks | profile and contour grinders | |
| 2,652,661 | Sep. 22, 1953 | C.H. Drury, E.V. Flanders | Crush Dressing Mechanism | grinder dressers | |
| 2,706,872 | Apr. 26, 1955 | C.H. Drury, E.V. Flanders | Grinding Machine | thread grinders | |