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| All Patents in class 318/789 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,641,908 | Sep. 06, 1927 | S. Bruno | Starting means for induction motors | ||
 | 1,828,724 | Oct. 20, 1931 | N.S. Yost | Alternating current motor | |
| 1,872,595 | Aug. 16, 1932 | F.S. Kingston | Electric motor | ||
 | 1,910,610 | May 23, 1933 | F.S. Kingston | Dynamo-electric machine | |
| 1,948,037 | Feb. 20, 1934 | F.S. Kingston | Electric motor | ||
| 2,502,099 | Mar. 28, 1950 | O. Lindfors | Single Phase Motor Starting | ||