发明名称 PORTABLE ELECTRIC ICE AUGER
摘要 An ice auger transportable on a snowmobile, and utilizing the electrical system of the snowmobile for its power. The electric motor and drive train are supported by a pair of transparent, di-electric plates, which serve as a light weight, safety housing for the power train for the auger bit, and insures direct visual control of the bit when in use.
申请公布号 US3705632(A) 申请公布日期 1972.12.12
申请号 USD3705632 申请日期 1971.04.05
申请人 LEO J. BURKE 发明人 LEO J. BURKE
分类号 E21B7/00;E21B7/02;E21B11/00;(IPC1-7):E21C1/00 主分类号 E21B7/00
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