发明名称 A HOLE CLEANING AND/OR FORMING TOOL
摘要 A tool for cleaning and/or forming holes, the tool having a shaft,(13) the shaft having a lower end and at least two buckets (15, 16) attached to adjacent the lower end of the shaft (13), each bucket having an open mouth which extends radially from the axis of the shaft (13) such that rotation of the shaft about its axis causes rotation of the buckets (15, 16) causing dirt to pass through the mouth of each bucket.
申请公布号 WO03050360(A1) 申请公布日期 2003.06.19
申请号 WO2002AU01589 申请日期 2002.11.25
申请人 MAHER, GRAEME, DUNCAN;KELLY, EDWARD, ARTHUR 发明人 MAHER, GRAEME, DUNCAN;KELLY, EDWARD, ARTHUR
分类号 E02F3/02;E02F5/20;E21B11/00;(IPC1-7):E02F3/02;E04H17/26;E21B10/26 主分类号 E02F3/02
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