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| All Patents in class 159/32 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 5,411X | Mar. 23, 1829 | W. Blocksom, J.T. Fracker | Pan for boiling salt water and making salt | ||
| 8,821X | May 16, 1835 | E.C. Cooper | Manufacturing salt by solar evaporation | ||
| AI19 | Dec. 10, 1838 | J. Malory | Setting sugar kettles | ||
| AI249 | Aug. 23, 1859 | L.P. Harris | Sugar evaporator | ||
| 219,797 | Sep. 23, 1879 | J.S. Blymyer | Evaporating-Pan | ||
 | 242,726 | Jun. 07, 1881 | W. Williams | Sorghum or Sugar Evaporator | |
| 813,089 | Feb. 20, 1906 | J.P. Golden | Evaporating Pan | ||