发明名称 Post hole digger
摘要 A post hole digger comprising arm members having a spade end and a handle end with a scissor-type connection proximate their spade end and a bend proximate their handle end such that the central portion of the arms are on opposite sides from their spade ends while the handle ends are on the same side as their spade ends, thus enabling the digging of deeper holes without having the arm members bind at the hole opening.
申请公布号 US4042270(A) 申请公布日期 1977.08.16
申请号 US19760677250 申请日期 1976.04.15
申请人 WEILAND, EDWARD E. 发明人 WEILAND, EDWARD E.
分类号 E21B11/00;(IPC1-7):A01B1/16 主分类号 E21B11/00
代理机构 代理人
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