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| All Patents in class 60/221 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 4,355X | Mar. 10, 1826 | G. Deming | Steam engine for boats | ||
| 5,002X | Feb. 14, 1828 | J.F. (Wight) | Canal steamboats | ||
 | 120,823 | Nov. 14, 1871 | J.M. McMaster | Improvement in propulsion of canal-boats | |