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| Patents for William H. Ayres | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,096,009 | May 12, 1914 | W.H. Ayres | Process of Dressing Up Cutting-Tools | ||
| 1,332,481 | Mar. 02, 1920 | W.H. Ayres | Head for Truing Dies | ||