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| All Patents in class 34/90 | |||||
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| Number | Date | Patentee | Title | Type | |
| 127,654 | Jun. 04, 1872 | I.C. Smith | Coffee-Roaster Operated by Steam | coffee roasters | |
| 186,176 | Jan. 09, 1877 | M. Stein | Combined Flat-Iron Heater and Coffee Roaster | coffee roasters | |
| 216,132 | Jun. 03, 1879 | H.C. Atkinson | Combined Oven-Door and Roaster | coffee roasters | |
| 217,376 | Jul. 08, 1879 | W.B. Hinkley | Combined Coffee Roaster and Oven | coffee roasters | |
| 254,582 | Mar. 07, 1882 | C. Abele | Coffee Roaster | coffee roasters | |