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| Patents for Frederick E. Frey | |||||
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| Picture | Number | Date | Patentee | Title | |
| 390,583 | Oct. 02, 1888 | F.E. Frey | Shaft and Pulley Coupling | ||
 | 391,697 | Oct. 23, 1888 | F.E. Frey | Brick and Tile Machine | |
| 421,692 | Feb. 18, 1890 | F.E. Frey | Tile Cutting Table | ||