发明名称 Seed planting roller device
摘要 An improved seed planting roller for planting seeds in individual holes in the ground, and having means for reclosing the hole over the planted seed. Also, means are shown for altering the circumference of the roller for adjustment of planted seed spacing.
申请公布号 US4023511(A) 申请公布日期 1977.05.17
申请号 US19750630131 申请日期 1975.11.10
申请人 NEWMAN, DWIGHT CLARK 发明人 NEWMAN, DWIGHT CLARK
分类号 A01C5/04;A01C7/04;A01C7/20;(IPC1-7):A01C5/04 主分类号 A01C5/04
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