发明名称 Swivel hook
摘要 An improved swivel hook is disclosed which has a tubular body, a swivel, a hook-like portion pivoted to one end of the body, and a locking pipe mounted on the body for limited axial movement. The swivel hook can be locked in the locking pipe simply by pushing it down and can be unlocked by pulling the locking pipe against a spring mounted in the body.
申请公布号 US4152814(A) 申请公布日期 1979.05.08
申请号 US19780882892 申请日期 1978.03.01
申请人 ITO, MIYOTSUGU 发明人 ITO, MIYOTSUGU
分类号 F16B45/02;(IPC1-7):A44B13/00 主分类号 F16B45/02
代理机构 代理人
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