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| All Patents in class 200/43.17 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,929,662 | Oct. 10, 1933 | F.W. Wappat | Motor driven tool switch | |
| 3,626,118 | Dec. 07, 1971 | H.R. Botefuhr | Radial arm saw with a depressible key for unlocking a switch-actuating trigger | ||