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| Patents Granted on 1830-10-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,199X | Oct. 20, 1830 | C.A. Barnitz | Manufacturing oil, from the sunflower | ||
| 6,200X | Oct. 20, 1830 | B.D. Beecher | Thrashing grain, shelling corn, and cutting straw, etc. | corn shellers | |
| 6,201X | Oct. 20, 1830 | E. Gammond | Cutting and manufacturing brads from iron plates | ||
| 6,202X | Oct. 20, 1830 | D.D. Hanson | Machine for sawing felloes | wheelwright | |