发明名称 Locking pipe wrench
摘要 A locking pipe wrench includes an upper movable jaw and a lower jaw attached to a toggle assembly whereby work can be firmly clamped and held between the jaws by adjusting the position of the upper jaw and by locking the lower jaw into position against the work by means of the toggle assembly.
申请公布号 US5138912(A) 申请公布日期 1992.08.18
申请号 US19910738553 申请日期 1991.07.31
申请人 DYKE, HAROLD J. 发明人 DYKE, HAROLD J.
分类号 B25B7/12;B25B13/10;B25B13/50 主分类号 B25B7/12
代理机构 代理人
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