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| All Patents in class 366/325.4 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 97,644 | Dec. 07, 1869 | J. Jay | Coffee Roaster | ||
| 133,625 | Dec. 03, 1872 | A. Broman | Coffee Roasters | ||
| 377,443 | Feb. 07, 1888 | O. Walden | Coffee Roaster | ||