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| All Patents in class 159/42 | |||||
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| Number | Date | Patentee | Title | Type | |
| 219,797 | Sep. 23, 1879 | J.S. Blymyer | Evaporating-Pan | sugar cane apparatus | |
| 242,726 | Jun. 07, 1881 | W. Williams | Sorghum or Sugar Evaporator | sugar cane apparatus | |