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| All Patents of Type: coffee dryers | |||||
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| Number | Date | Patentee | Title | Type | |
| 324,182 | Aug. 11, 1885 | H. Stollwerck | Grain Dryer | coffee dryers | |
| 563,801 | Jul. 14, 1896 | A.F. Ramos | Method of and Apparatus for Drying Coffee | coffee dryers | |
| 841,964 | Jan. 22, 1907 | C.A. Hege | Coffee-drier | coffee dryers | |