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| All Patents in class 318/797 | |||||
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| Number | Date | Patentee | Title | Type | |
| 511,559 | Dec. 26, 1893 | N. Tesla | Electrical Transmission of Power | ||
| 555,190 | Feb. 25, 1896 | N. Tesla | Alternating Motor | ||
| 620,965 | Mar. 14, 1899 | E.W. Rice, C.P. Steinmetz | Alternating Current Motor | induction motors | |