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| Patents for W. A. Layman | |||||
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| Number | Date | Patentee | Title | Type | |
| 742,280 | Oct. 27, 1903 | J.H. Blair | Electric motor | electric motors | |
| 921,914 | May 18, 1909 | A.H. Timmerman | Dynamo-electric machine | electric motors | |