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| All Patents in class 279/2.22 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 163,217 | May 11, 1875 | P.B. Lawson | Expanding Mandrel | ||
 | 1,433,163 | Oct. 24, 1922 | A.L. Walters | Speed Wrench Handle | |