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| All Patents in class 318/161 | |||||
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| Number | Date | Patentee | Title | Type | |
| 924,786 | Jun. 15, 1909 | H.D. James | System of Electric Motor Control | motor controls | |
| 1,102,116 | Jun. 30, 1914 | J.J. Wood | Dynamo-electric machine | electric motors | |
| 1,736,551 | Nov. 19, 1929 | T. Schou | Electric motor and generators | motor armatures | |