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| Patents for Fred H. Colvin | |||||
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| Number | Date | Patentee | Title | Type | |
| 562,581 | Jun. 23, 1896 | F.H. Colvin | Hammer or Mallet | mallets | |
| 714,866 | Dec. 02, 1902 | F.H. Colvin | Arbor Press | arbor presses | |