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| All Patents in class 318/294 | |||||
| Number | Date | Patentee | Title | Type | |
| 295,454 | Mar. 18, 1884 | F.J. Sprague | Electro Dynamic Motor | electric motors | |
| 4,568,864 | Feb. 04, 1986 | E.T. Gisske | Electric motor control for a pipe bender | electrical conduit apparatus | |