发明名称 ANORDNING FOER ATT STOEDA EN PERSON PAO EN STEGE
摘要 A device for supporting a person on a ladder in which a frame is provided for extending around the ladder with sufficient clearance to move relative to said ladder. A portion of the frame extends at an angle relative to the remaining frame and inwardly towards the ladder. The frame can be connected to the person at a position that of said angularly-extending portion so that movement of the person downwardly on said ladder causes said angularly-extending portion to move between the ladder stays and engage a rung on said ladder to prevent further downward movement.
申请公布号 FI69342(B) 申请公布日期 1985.09.30
申请号 FI19830000248 申请日期 1983.01.25
申请人 SMITH SAMUEL DAVID 发明人 SMITH SAMUEL DAVID
分类号 E06C;E06C7/18;(IPC1-7):E06C7/18 主分类号 E06C
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