发明名称 Excavation bucket
摘要 An excavation bucket having a closed top and an open front and comprising two opposed sidewalls each with a flat and an outwardly extending flanged portion, which bucket digs an excavation which has a combination of a vertical wall area with an adjacent and contiguous sloped wall area. Teeth are mounted outwardly from the flanged portions of the sidewalls producing a terracing effect in the sloped sidewall area of the excavation.
申请公布号 US4719711(A) 申请公布日期 1988.01.19
申请号 US19850740811 申请日期 1985.06.03
申请人 SIEBER, KARL G.;SIEBER, KURT G. 发明人 SIEBER, KARL G.;SIEBER, KURT G.
分类号 E02F3/40;E02F9/28;(IPC1-7):E02F3/40 主分类号 E02F3/40
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