发明名称 Cover for earth boring drill
摘要 A cover for an earth boring tool having a canopy with opposite sides, opposite ends, a top portion, and a bottom portion. A plurality of straps are secured to one side of canopy, extend across the open bottom portion, and are detachably secured to the opposite side of the canopy. The end straps, when detachably secured, align with the edges of the opposite ends to form a temporary seal.
申请公布号 US6325120(B1) 申请公布日期 2001.12.04
申请号 US19990405579 申请日期 1999.09.27
申请人 DOUGLAS KEVIN J. 发明人 DOUGLAS KEVIN J.
分类号 B25H3/00;(IPC1-7):B65D65/02 主分类号 B25H3/00
代理机构 代理人
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