发明名称 Ice spud
摘要 An ice spud is provided with a blade having cutting means which comprises a pair of spikes and a cutting edge defining a notch in an end of the blade, the cutting edge intersecting lateral edges of the blade to define the spikes therewith, whereby the spikes are spaced from one another without obstruction therebetween and each of the spikes terminates in a cutting point at the respective lateral edge.
申请公布号 US4862591(A) 申请公布日期 1989.09.05
申请号 US19880143467 申请日期 1988.01.12
申请人 BARRINGER, RICHARD C. 发明人 BARRINGER, RICHARD C.
分类号 A01K97/01;E21B7/00;E21B10/42;F25C5/04 主分类号 A01K97/01
代理机构 代理人
主权项
地址