Frank L. Main |
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Page Sections
Documents |
| Date | Document Name & Details | Documents |
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| 29 September 1925 | Disk Wheel United States Patent US 1,555,137 Frank L. Main and Emil R. Jacobi for Hayes Wheel Company |  PDF - 461KB - 5 pages |
| 29 September 1925 | Vehicle Wheel United States Patent US 1,555,138 Frank L. Main for Hayes Wheel Company | PDF - 391KB - 4 pages |