发明名称 Lightweight traction intensifying means for agricultural wheeled tractors and the like
摘要 A lightweight device for obtaining improved traction efficiency of rubber tired vehicles without adding ballast weight. The device has resilient traction intensifying means secured to a driving tire, including auxiliary means for utilizing stronger sub-surface soil, providing higher drawbar pull at a higher rate of travel speed; and means for convenient attachment and removal.
申请公布号 US4402357(A) 申请公布日期 1983.09.06
申请号 US19810322115 申请日期 1981.11.17
申请人 GRANRYD, THORVALD G. 发明人 GRANRYD, THORVALD G.
分类号 B60B15/26;B60C27/04;B60C27/20;(IPC1-7):B60C27/00 主分类号 B60B15/26
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