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| Patents for Frank C. Curtis | |||||
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| Number | Date | Patentee | Title | Type | |
| D25,358 | Apr. 07, 1896 | E. Rogers | Design for a Hatchet | axes | |
| 563,049 | Jun. 30, 1896 | D. Metcalfe | Pipe Wrench | pipe wrenches | |
| 566,937 | Sep. 01, 1896 | E. Rogers | Axe/Hatchet Making | making axes | |
| 584,018 | Jun. 08, 1897 | I. Sicotte | Tenoning-machine | tenoning machines | |
| 622,269 | Apr. 04, 1899 | E. Rogers | Axe/Hatchet Making | making axes | |
| 623,384 | Apr. 18, 1899 | E. Rogers | Axe/Hatchet Making | making axes | |
| 658,426 | Sep. 25, 1900 | J.H. Burck | Tool-grinding machine | sharpening machines | |