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| All Patents in class 403/354 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,341,180 | May 25, 1920 | W.L. Kern | Manufacture of Bit-stock | ||
| 2,407,348 | Sep. 10, 1946 | R.D. Schott | Impeller Mounting | ||
 | 2,431,619 | Nov. 25, 1947 | E.C. Read | Steam engine with keyed connection between piston rod and crosshead | |
 | 2,536,627 | Jan. 02, 1951 | W. Copp | Woodworking machine blade guard | |
| 2,832,246 | Apr. 29, 1958 | F.W. Livermont | Detachable Wrench Head Construction | ||