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| All Patents in class 416/223R | |||||
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| Picture | Number | Date | Patentee | Title | |
| 4,454X | Jun. 01, 1826 | W. Coburn | Construction of wind mills | ||
| 3,959 | Mar. 21, 1845 | C. Aylsworth | Water Wheel | ||
| 190,012 | Apr. 24, 1877 | L. d'Auria | Water-Wheel | ||
| 318,869 | May 26, 1885 | E.M. Carhart | Water Wheel | ||
| 451,777 | May 05, 1891 | J. Schwarzmann | Rotary Engine | ||