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| All Patents in class 318/819 | |||||
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| Number | Date | Patentee | Title | Type | |
| 735,118 | Aug. 04, 1903 | W. Langdon-Davies, A. Soames | Polyphase Alternating Current Induction Motor | induction motors | |
| 745,772 | Dec. 01, 1903 | D.M. Bliss | Induction-motor | induction motors | |