发明名称 Nut and wrench system
摘要 A wrench capable of operating on large fasteners in confined areas includes multiple body portions which can be connected in surrounding relationship to a nut. A bar or bars can be inserted into aligned slots in the wrench and the surrounded fastener so as to engage the wrench and the fastener for wrench operation.
申请公布号 US4793223(A) 申请公布日期 1988.12.27
申请号 US19860935874 申请日期 1986.11.28
申请人 COOPER INDUSTRIES, INC. 发明人 HORNE, JOHN M.;UMBAUGH, DANIEL L.
分类号 B25B13/00;B25B13/02;B25B13/04;B25B13/48;(IPC1-7):B25B13/50;B25B13/58 主分类号 B25B13/00
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