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| All Patents in class 261/DIG.027 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,085,971 | Feb. 03, 1914 | W.H. Carrier | Method of humidifying air and controlling the humidity and temperature thereof | |
| 1,330,238 | Feb. 10, 1920 | W.H. Carrier | Method of and apparatus for drying, conditioning, and regulating the moisture content of hygroscopic materials | ||
| 1,687,542 | Oct. 16, 1928 | W.H. Carrier | Cooling system | ||