发明名称 Plant hole digger with cylindrical cutter
摘要 This invention is comprised of an auger with fixed or replaceable tips designed to cut openings through sheet plastic or fiberglass ground coverings and drill, in a continuous operation, an appropriate diameter hole for planting seedlings or seeds as may be desired. This invention is comprised of a shaft with spiral auger and a cutting tip with a cylindrical cutting edge and a recessed drilling point as an assembly which is removably attached to the shaft with flights on it. The device can be driven by a conventional electric drill with a one-half inch chuck.
申请公布号 US5133269(A) 申请公布日期 1992.07.28
申请号 US19900548219 申请日期 1990.07.05
申请人 CHARNESKI, ROBERT 发明人 CHARNESKI, ROBERT
分类号 A01C5/02 主分类号 A01C5/02
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