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| All Patents in class 222/311 | |||||
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| Number | Date | Patentee | Title | Type | |
| 345,580 | Jul. 13, 1886 | B.M. Root, H.W. Eisenhart, A.B. Farquhar | Fertilizer-distributor | ||
| 725,921 | Apr. 21, 1903 | E. Baseman | Seeding-machine | ||
| 1,521,014 | Dec. 30, 1924 | E.R. Draver | Regulating device for percentage feeders | ||