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| Patents for William S. Thomson | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,257,549 | Feb. 26, 1918 | W.S. Thomson | Bearing Guide for Grinding Machines | ||
| 1,679,103 | Jul. 31, 1928 | W.S. Thomson | Electrically-driven circular saw | tablesaws | |