发明名称 Cultivator with screening device
摘要 A cultivator having rotatable soil-working tines on supports has a screening element pivotally connected to the front of the frame to extend downwardly near the supports. Springs bias the screening element to a position adjacent the tines to prevent damage by stones encountered during operation. Adjustment members permit the vertical adjustment of the screening element relative to the tines.
申请公布号 US4050520(A) 申请公布日期 1977.09.27
申请号 US19760652098 申请日期 1976.01.26
申请人 C. VAN DER LELY N. V. 发明人 VAN DER LELY, ARY;BOM, CORNELIS JOHANNES GERARDUS
分类号 A01B33/12;(IPC1-7):A01B33/06 主分类号 A01B33/12
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