发明名称 Tension spring flotation for agricultural rakes
摘要 An agricultural rake basket flotation system is described that employs tension springs to support a portion of the weight of the rake basket, toward the lateral ends thereof, thus allowing for a more sensitive and complete response to encounters with obstacles and irregularities in the ground level.
申请公布号 US2002157372(A1) 申请公布日期 2002.10.31
申请号 US20010844751 申请日期 2001.04.27
申请人 BLAKESLEE EDWARD A.;SORENSEN DOUGLAS D. 发明人 BLAKESLEE EDWARD A.;SORENSEN DOUGLAS D.
分类号 A01D78/00;(IPC1-7):A01D76/00 主分类号 A01D78/00
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