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| Patents for Davis & Canavan | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 112,135 | Feb. 28, 1871 | G.W. Fitts | Traction Engine | |
 | 117,759 | Aug. 08, 1871 | G.W. Fitts | Guide Wheel for Vehicles | |
 | 119,922 | Oct. 17, 1871 | G.W. Fitts | Improvement in Traction Wheel | |
 | 158,206 | Dec. 29, 1874 | G.W. Fitts | Traction Wheels | |
| 175,601 | Apr. 04, 1876 | G.W. Fitts | Traction Engine | ||