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| Patents for Frederick W. Coy | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 78,065 | May 19, 1868 | F.W. Coy | Gage for Marking Bevels | |
| 294,766 | Mar. 11, 1884 | F.W. Coy | Abrading-machine | ||
| 296,535 | Apr. 08, 1884 | F.W. Coy | Abrading-machine | ||