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| All Patents in class 418/244 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 15,281 | Jul. 08, 1856 | T. Turton, J.M. Colman | Rotary Steam Engine | ||
| 447,831 | Mar. 10, 1891 | M. Johnson | Rotary Engine | ||
| 878,543 | Feb. 11, 1908 | W. Krygowski | Steam Engine | ||