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| Patents for Peter Pearson | |||||
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| Number | Date | Patentee | Title | Type | |
| 239,269 | Mar. 22, 1881 | P. Pearson | Apparatus for Roasting Coffee | coffee roasters | |
| 250,571 | Dec. 06, 1881 | P. Pearson | Apparatus for Roasting Coffee and Other Vegetable Substances | coffee roasters | |