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| Patents for Heinrich Stollwerck | |||||
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| Picture | Number | Date | Patentee | Title | |
| 308,529 | Nov. 25, 1884 | H. Stollwerck | Coca Roaster | ||
| 324,182 | Aug. 11, 1885 | H. Stollwerck | Grain Dryer | ||
| 423,458 | Mar. 18, 1890 | H. Stollwerck | Apparatus for Roasting Coffee | ||