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| All Patents in class 408/67 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,204,492 | Sep. 07, 1965 | R.G. Spreen | Method of Drilling | drill presses | |
| 3,366,012 | Jan. 30, 1968 | P.E. Richter | Machine Tool Guard Structure | metalworking machine mechanisms | |
| 3,825,245 | Jul. 23, 1974 | J.J. Schachte, J.G. Osburn | Workpiece Changer Mechanism for a Machine Tool | tool changers and storage mechanisms | |
| 5,080,535 | Jan. 14, 1992 | Y. Hirano | Drill Chips Removing Device | drill press accessories | |