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| All Patents in class 318/733 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,254,221 | Jan. 22, 1918 | V.A. Fynn | Alternating-current motor | AC motors | |
| 1,387,047 | Aug. 09, 1921 | V.A. Fynn | Polyphase motor | AC motors | |
| 1,691,747 | Nov. 13, 1928 | H. Weichsel, B. McCormick | Alternating-current motor | AC motors | |