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| All Patents in class 192/90 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,143,008 | Jun. 15, 1915 | C.E. Willey | Automobile or train lighting system | ||
| 1,665,742 | Apr. 10, 1928 | F.S. Kingston | Induction motor | induction motors | |
| 1,853,864 | Apr. 12, 1932 | F.S. Kingston | Clutch and motor construction | electric motors | |
| 1,948,037 | Feb. 20, 1934 | F.S. Kingston | Electric motor | electric motors | |
| 1,953,179 | Apr. 03, 1934 | F.S. Kingston | Clutch | industrial machine clutches | |
| 1,987,194 | Jan. 08, 1935 | F.S. Kingston | Clutch | industrial machine clutches | |