发明名称 Complex wrench
摘要 The present invention discloses a complex wrench composed of a strip-shaped shank which includes a front section, a middle section and a rear section along its length direction in order thereof, the front section and the rear section connecting a first driving head and a second driving head respectively, the middle section being a twisted section which makes the axis lines of the first driving head and the second driving head on different planes, and the middle section having at least one sunken area where is covered with a plurality of embossed patterns.
申请公布号 US8701524(B2) 申请公布日期 2014.04.22
申请号 US201113275305 申请日期 2011.10.17
申请人 CHANG CHIOU-MAI;WANG YUEH-LI 发明人 CHANG CHIOU-MAI;WANG YUEH-LI
分类号 B25B13/46;B25B13/02;B25B13/04;B25B13/08;B25B23/16;G09F7/16 主分类号 B25B13/46
代理机构 代理人
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