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| All Patents in class 34/79 | |||||
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| Number | Date | Patentee | Title | Type | |
| 84,193 | Nov. 17, 1868 | J.D. Flansburgh, W. Johnston | Coffee Roaster | coffee roasters | |
| 507,538 | Oct. 31, 1893 | B. Lilienfeld, D. Grove | Coffee Roaster | coffee roasters | |
| 591,307 | Oct. 05, 1897 | B. Tupholme | Apparatus for Roasting Coffee | coffee roasters | |
| 603,551 | May 03, 1898 | G. Burs | Coffee Roaster | coffee roasters | |
| 1,518,966 | Dec. 09, 1924 | G.B. Damon | Drier | ore processing apparatus | |