发明名称 Fall arresting hook for use on ladders
摘要 This invention helps prevent persons who climb ladders from falling from said ladders. It consists of one or more fall arresting devices which hook over the rungs of a ladder. Used in conjunction with a safety harness and connecting tethers, this invention becomes an adjunct to the human hand, preventing the climber from falling to the ground in the event that the climber's hands should lose their grip. It works even when the rungs of a ladder are covered with ice.
申请公布号 US2003183449(A1) 申请公布日期 2003.10.02
申请号 US20030361276 申请日期 2003.02.10
申请人 MARTIN STANLEY THOMAS 发明人 MARTIN STANLEY THOMAS
分类号 A62B35/00;(IPC1-7):A62B37/00 主分类号 A62B35/00
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