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| Patents for Cleveland Twist Drill Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| D35,888 | Apr. 29, 1902 | H.G. Smith | Cleveland Twist Drill Bit Index | drill accessories | |
| 1,105,535 | Jul. 28, 1914 | J.O. Roberts | Screw Extractor | screw extractors | |
| 1,972,742 | Sep. 04, 1934 | G.W. Kohlmetz | Drill Set Display | ||
| 2,542,368 | Feb. 20, 1951 | N.A. Smith | driftpin | ||
| 2,932,196 | Apr. 12, 1960 | J.J. Sledz | Internal Recessing Tool and Holder Therefor | drilling and boring tool holders | |