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| Patents for Gray Brothers | |||||
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| Number | Date | Patentee | Title | Type | |
| 12,510 | Mar. 13, 1855 | J. Hyde | Improvement in Screw-Wrenches | quick adjust wrenches | |
| 13,617 | Oct. 02, 1855 | J. Hyde | Screw-Wrench | quick adjust wrenches | |
| 71,871 | Dec. 10, 1867 | W.M. Gray | Gray's Patent Bed Wrench | ratchet wrenches | |