发明名称 Tree climbing stand
摘要 A tree climbing stand utilizing two climbing elements. Also provided are spring actuated element for locking the tree stand in its expanded, operational position, a retractable safety bar for supporting the back of the climber, and a cleat, which may be included or excluded at the discretion of the user, for engaging the tree.
申请公布号 US5090505(A) 申请公布日期 1992.02.25
申请号 US19900553653 申请日期 1990.07.18
申请人 AMACKER, JOSEPH A. 发明人 AMACKER, JOSEPH A.
分类号 A47C9/10 主分类号 A47C9/10
代理机构 代理人
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