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| All Patents in class 432/114 | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,690 | Jan. 20, 1874 | G.L. Kouns | Coffee Roasters | coffee roasters | |
| 423,458 | Mar. 18, 1890 | H. Stollwerck | Apparatus for Roasting Coffee | coffee roasters | |