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| Patents for National Automatic Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,146,768 | Jul. 13, 1915 | E.W. Cleveland | Multiple Spindle Drill Head | multiple spindle drilling heads | |
| 1,262,235 | Apr. 09, 1918 | P.F. Murray | Automatic Feed Starter for Drill Presses | drill presses | |