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| All Patents in class 415/208.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 86,469 | Feb. 02, 1869 | B.F. Sturtevant | Improvement in blowers | blowers | |
| 2,611,578 | Sep. 23, 1952 | G.A. Biggs | Sectionalized Case for Turbines and the Like | turbine water wheels | |