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| All Patents in class 237/67 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 95,281 | Sep. 28, 1869 | B.F. Sturtevant | Hot Air Furnace | |
 | 100,211 | Feb. 22, 1870 | B.F. Sturtevant | Heating and Ventilating Apparatus | |
 | 193,086 | Jul. 17, 1877 | B. Holly | Steam Apparatus | |
 | 293,246 | Feb. 12, 1884 | L. Herrick | Drilling-machine | |
| 587,291 | Jul. 27, 1897 | E.P. Holly | Water Return System for Steam Generators | ||
 | 1,675,285 | Jun. 26, 1928 | A.J. Vance | Drier for veneer and sheet material | |