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| Patents for William E. Cowley | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,297,872 | Oct. 06, 1942 | E.J. Dillman, W.E. Cowley, F.Y. Carter | Control Apparatus | refrigeration apparatus | |
| 2,298,253 | Oct. 06, 1942 | W.E. Cowley, E.J. Dillman | Valve | valves | |
| 2,357,795 | Sep. 12, 1944 | E.J. Dillman, W.E. Cowley | Valve | refrigeration apparatus | |
| 2,895,513 | Jul. 21, 1959 | W.E. Cowley | Tablesaw tenoning jig | tablesaw accessories | |