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| All Patents in class 416/248 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,772X | Sep. 28, 1831 | J.Y. VanTuyl | Wind power applied to mills | ||
| 11,511 | Aug. 08, 1854 | S.W. Ruggles | Fan-blower | blowers | |
| 2,767,460 | Oct. 23, 1956 | R.A. Schultz | Turbine blade and method of making same | gas turbines | |