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| Patents for Thomas Engineering Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 830,811 | Sep. 11, 1906 | E.E. Thomas | Steam-actuated valve | drag saws | |
| 1,347,722 | Jul. 27, 1920 | E.E. Thomas | Nut-lock | nut locks | |