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| All Patents in class 269/187 | |||||
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| Number | Date | Patentee | Title | Type | |
| 80,997 | Aug. 11, 1868 | W. Pearson | Clamp Nut | ||
| 823,748 | Jun. 19, 1906 | F.E. Walden | Clamp | C clamps | |
| 856,436 | Jun. 11, 1907 | F.E. Walden | Ratchet-Clamp | C clamps | |
| 1,140,646 | May 25, 1915 | H.H. Abernathy | Rapid-acting vise | woodworkers vises | |