发明名称 NOVEL POST HOLE DIGGER
摘要 <p>The subject invention provides a post hole digger which facilitates the digging of deep uniform diameter post holes. The post hole digger accomplishes this by crossing the handles to close the shovel blades. This allows the handles to stay within the diameter of the hole opening, removing the need to increase the diameter of the hole opening as the depth of the hole is increased.</p>
申请公布号 WO2001011939(A1) 申请公布日期 2001.02.22
申请号 US1999018465 申请日期 1999.08.13
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