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| All Patents in class 68/19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 128,594 | Jul. 02, 1872 | A.N. Cole | Improvement in apparatus for separating oil from cotton-waste, &c. | ||
| 642,824 | Feb. 06, 1900 | J.A. McCaskell | Coffee Roaster | coffee roasters | |