发明名称 Cleat for climbing trees and the like
摘要 An improved cleat for climbing trees and the like having a shank adapted to be supported in suspended relation from a chain passed around the trunk and connected to opposite ends of a transversely oriented cross bar rigidly affixed to the uppermost end of the shank. A step projects horizontally from the lower most end of the shank and is stabilized through combined stabilizing effects of a downwardly projected heel and the cross bar.
申请公布号 US4027742(A) 申请公布日期 1977.06.07
申请号 US19760710641 申请日期 1976.08.02
申请人 HOUSE, JR., ANIEL HERMAS 发明人 HOUSE, JR., ANIEL HERMAS
分类号 A63B27/00;(IPC1-7):B60R3/00 主分类号 A63B27/00
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