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| All Patents in class 74/424.71 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 253,266 | Feb. 07, 1882 | S. Darling | Screw Nut | |
 | 255,011 | Mar. 14, 1882 | A.W. Norton | Lathe | |
| 272,480 | Feb. 20, 1883 | H.A. Rowland | Apparatus for Grinding Screws | ||
 | 1,909,598 | May 16, 1933 | M.E. Erskine, J.S. Toohey | Metal Sawing Machine | |
| 2,317,060 | Apr. 20, 1943 | W.G. Hoelscher | Safety Device for Radial Drill Arm Elevating Screws | ||
 | 2,703,498 | Mar. 08, 1955 | C. Tree | Removable Feed Nut for the Cross-Feed Apparatus of Milling Machines | |