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| Patents for National-Acme Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
| 975,728 | Nov. 15, 1910 | O.A. Smith | Nut Feed for Tapping Machine | ||
 | 1,021,848 | Apr. 02, 1912 | B. Rindfleisch | Floating tool-holder | |
 | 1,085,800 | Feb. 03, 1914 | W. Crandall | Box-tool | |
 | 1,092,462 | Apr. 07, 1914 | E. Trobeck | Multiple-spindle screw machine | |
 | 1,187,618 | Jun. 20, 1916 | G.O. Gridley | Metal-turning tool | |
 | 1,256,180 | Feb. 12, 1918 | O.A. Smith | Drill-machine | |