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| All Patents in class 416/184 | |||||
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| Number | Date | Patentee | Title | Type | |
| 100,236 | Feb. 22, 1870 | B.F. Sturtevant | Pressure Blower Wheel | blowers | |
| D4,629 | Feb. 07, 1871 | C.S. Hall | Design for a show-card | ||
| 2,727,680 | Dec. 20, 1955 | R.D. Madison, H.C. Burgin, W.R. Elliot, R.D. Robson | Centrifugal fan | ||