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| Patents for Davis Tool and Level Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 306,690 | Oct. 14, 1884 | R.D. Johnson | Bit-stock (chuck) | ||
| 342,727 | May 25, 1886 | J.A. Bolen | Ratchet bit-brace | ratchet braces | |
| 360,650 | Apr. 05, 1887 | L.C. Bolen | Ratchet bit brace | ratchet braces | |