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| Patents for William D. Clugston | |||||
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| Picture | Number | Date | Patentee | Title | |
| 627,098 | Jun. 20, 1899 | W.D. Clugston | Expanding Tool Holder | ||
| 627,099 | Jun. 20, 1899 | W.D. Clugston | Cutter Head for Planers | ||