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| All Patents in class 279/75 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,251,605 | May 17, 1966 | E.J. Ondeck | Quick Release Chuck | drill press chucks | |
| 3,881,604 | May 06, 1975 | W.L. Eggemeier | Machine Loader Pickup Device | workpiece changers and storage mechanisms | |
| 4,930,261 | Jun. 05, 1990 | M.J. Kurten, M.D. Tiegs | Valve resurfacing apparatus and method for making the same | valve and seat maintenance | |