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| All Patents in class 411/437 | |||||
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| Number | Date | Patentee | Title | Type | |
| 81,480 | Aug. 25, 1868 | G.P. Darrow | Improvement in cast nuts | ||
| 122,243 | Dec. 26, 1871 | J. Flower | Improvement in Boring Bars for Facing the Ends of Cylinders | boring bars | |
| 800,988 | Oct. 03, 1905 | A.B. Cook | Wrench | screw adjust wrenches | |
| 1,096,763 | May 12, 1914 | C. Smith | Wrench | pipe wrenches | |