发明名称 Lawn rake and cultivator
摘要 A lawn rake and cultivator comprising a frame having multiple rows of depending tines, each of which has a forward end which inclines forwardly and upwardly the majority of the time during forward travel, for pitching thatch forwardly and upwardly out of grass due to resiliency of the teeth which causes them to move backwards and forwards as they engage the ground and support the frame, one or more teeth being held upwardly for row crop cultivation by passing harmlessly across the row crop, the teeth being stiffened for special uses by a horizontal stiffener fixed to the frame and having openings therethrough receiving center portions of the teeth.
申请公布号 US4146096(A) 申请公布日期 1979.03.27
申请号 US19770783389 申请日期 1977.03.31
申请人 ROCKER, GALEN J. 发明人 ROCKER, GALEN J.
分类号 A01B19/02;A01D76/00;(IPC1-7):A01B19/00;A01D77/00 主分类号 A01B19/02
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