发明名称 Circular self-cleaning harrow
摘要 Circular self-cleaning harrow provided with a chassis and with a plurality of rotary working members 3 mounted in the said chassis so as to be able to be driven about substantially vertical axes and which each comprise a support 4 on which is arranged at least one removable cutter-shaped tool, characterised in that two tools are mounted at each support 4 with the aid of fixing bolts, the tools being provided with a fixing part, the fixing part passing by means of a curvature into an active part which is provided with an oblong reinforcing rib pointing downwards. <IMAGE>
申请公布号 FR2641934(A1) 申请公布日期 1990.07.27
申请号 FR19900002626 申请日期 1990.03.02
申请人 VAN DER LELY NV 发明人 CORNELIS VAN DER LELY
分类号 A01B33/06;A01B33/14 主分类号 A01B33/06
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