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| All Patents in class 99/536 | |||||
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| Number | Date | Patentee | Title | Type | |
| 246,274 | Aug. 23, 1881 | R.S. Jennings | Method of and Apparatus for Collecting the Aromatic and Volatile Substances From | roasting coffee | |
| 344,597 | Jun. 29, 1886 | A.L. Saint-Aubin | Process of and Apparatus for Treating Coffee | roasting coffee | |
| 991,413 | May 02, 1911 | R. Bahmann | Coffee-Pulper | coffee mills | |