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| Patents for Joseph Warren Calef | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-10,613 | Nov. 05, 1879 | J.W. Calef, A.D. Cable | Improvements on wrenches | self-adjust wrenches | |
| 226,490 | Apr. 13, 1880 | J.W. Calef | Wrench | self-adjust wrenches | |
| 272,526 | Feb. 20, 1883 | J.W. Calef | Pipe Cutter and Tongs | pipe wrenches | |
| 273,461 | Mar. 06, 1883 | J.W. Calef | Improved Self-Adjusting Wrench | self-adjust wrenches | |