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| Patents for C. Halsey Canfield | |||||
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| Number | Date | Patentee | Title | Type | |
| D2,672 | Jun. 11, 1867 | B. Fitts | Design for a steam fire engine | steam fire engines | |
| 72,619 | Dec. 24, 1867 | B. Fitts | Planing and matching machine | wood planers | |
| 79,971 | Jul. 14, 1868 | E. Gould | Improved screw-threading machine | ||