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| All Patents in class 464/48 | |||||
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| Number | Date | Patentee | Title | Type | |
| 212,337 | Feb. 18, 1879 | T.A. Weston | Speed-Governor and Friction-Brake for Machinery | industrial friction brakes | |
| 1,976,944 | Oct. 16, 1934 | D.C. Klausmeyer | Feed gear antioverload device | radial drill presses | |
| 2,535,842 | Dec. 26, 1950 | W.W. Criley | Stall Relief for Forging Presses and the Like | forging apparatus and accessories | |