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| Patents for F. C. Dahlberg | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 881,449 | Mar. 10, 1908 | G.A. Smith | Thread Cutting Device | |
 | 890,152 | Jun. 09, 1908 | G.M. Mason | Tool For Constructing and Repairing Wire Fences | |
| 890,519 | Jun. 09, 1908 | W.R. Lansberry | Jointer Plane that Slits Two Boards | ||
 | 928,150 | Jul. 13, 1909 | E.M. Peterson | Pipe Wrench | |