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| All Patents in class 99/603 | |||||
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| Number | Date | Patentee | Title | Type | |
| 39,146 | Jul. 07, 1863 | D.W. Harshbarger | Hulling Machine | grain hullers | |
| 512,819 | Jan. 16, 1894 | C.A. Hege | Machine for hulling coffee or for other purposes | clover hullers | |
| 512,881 | Jan. 16, 1894 | C.A. Hege | Machine for hulling coffee or for other purposes | clover hullers | |