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| All Patents in class 222/620 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,024X | Aug. 17, 1835 | J. Hatch | Machine for Sowing Plaster, Lime, etc. | crop planters | |
| RE1 | Jan. 09, 1838 | J. Hatch | Machine for Sowing Plaster, Ashes, Seed, and Other Separable Substances | crop planters | |
| 1,366 | Oct. 12, 1839 | O.G. Merchant, N.R. Merchant | Improvement in machines for planting corn | corn planters | |