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| All Patents in class 415/214.1 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 87,523 | Mar. 02, 1869 | B.F. Sturtevant | Improvement in blower-case | |
 | 196,998 | Nov. 13, 1877 | B.F. Sturtevant | Fan Blowers | |
| 1,584,944 | May 18, 1926 | A.J. Johnson | Blower construction | ||
| 2,611,578 | Sep. 23, 1952 | G.A. Biggs | Sectionalized Case for Turbines and the Like | ||