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| All Patents in class 34/63 | |||||
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| Number | Date | Patentee | Title | Type | |
| 145,880 | Dec. 23, 1873 | H.C. Lockwood | Coffee Roasters | coffee roasters | |
| 510,068 | Dec. 05, 1893 | K.F. Henneman | Gas Coffee Roaster | coffee roasters | |
| 591,307 | Oct. 05, 1897 | B. Tupholme | Apparatus for Roasting Coffee | coffee roasters | |
| 616,790 | Dec. 27, 1898 | M.F. Hamsley | Apparatus for Roasting Coffee Berries | coffee roasters | |
| 1,160,650 | Nov. 16, 1915 | J.C. Prims | Coffee-roaster | coffee roasters | |