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| All Patents in class 426/93 | |||||
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| Number | Date | Patentee | Title | Type | |
| 167,383 | Sep. 07, 1875 | J.H. Conrad, J.H. Bell | Improvements in Composition for Glazing Roasted Coffee | coffee roasters | |
| 177,954 | May 30, 1876 | C.H. Nichols | Improvement in Coffee Polishes | roasting coffee | |
| 205,356 | Jun. 25, 1878 | J.T. Cooke | Improvement in Compounds for Coating Roasted Coffee | roasting coffee | |
| 312,515 | Feb. 17, 1885 | A. Schilling | Roasted Coffee Berries | roasting coffee | |
| 312,516 | Feb. 17, 1885 | A. Schilling | Roasted Coffee Berries | roasting coffee | |