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| Patents for William Turnbull | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,258,608 | Mar. 05, 1918 | W. Turnbull | Track-link construction | tracks | |
| 1,264,197 | Apr. 30, 1918 | A. Sheddon, J. McGregor | Multiple Turning Lathe | multiple spindle lathes | |