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| All Patents in class 310/216.049 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,033,379 | Jul. 23, 1912 | J. Burke | Dynamo-electric machine | electric motors | |
| 1,156,639 | Oct. 12, 1915 | C.W. Starker | Dynamo-electric machine | motor stators | |
| 2,532,823 | Dec. 05, 1950 | H.W. Schumann | Motor tool | handheld power tools | |