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| All Patents in class 310/216.016 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,150,049 | Aug. 17, 1915 | F.S. Martin | Laminated structure | motor armatures | |
| 1,159,121 | Nov. 02, 1915 | C.W. Starker | Dynamo-electric machine | induction motors | |