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All Patents in class 222/330 | |||||
Number | Date | Patentee | Title | Type | |
373,870 | Nov. 29, 1887 | H.L. Whitman, G.F. Whitman | Broadcast seed-sower | seeders | |
1,400,668 | Dec. 20, 1921 | E.R. Draver | Feeding device | ||
2,867,228 | Jan. 06, 1959 | R.V. Klikunas, F.F. Rike | Emergency shut-off valve |