发明名称 Ratcheting box wrench
摘要 A ratcheting hydraulic torque wrench in which the lever arm is provided with a tracking arm guided within a channel in a wrench body. The tool head is divided into a ratcheting portion containing roller drive pins, and a notched portion to allow access to pipe flange nuts.
申请公布号 US4744271(A) 申请公布日期 1988.05.17
申请号 US19870052485 申请日期 1987.05.21
申请人 COLLINS, BOBBY W. 发明人 COLLINS, BOBBY W.
分类号 B25B13/46;B25B21/00;(IPC1-7):B25B13/46 主分类号 B25B13/46
代理机构 代理人
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