发明名称 Portable boom
摘要 A portable boom for use with a support, such as a tree, has a support extendable from a mound. The mount secures to a tree and supports a lifted weight connected to the support. The portable boom is designed to be portable and easy to connect to the support.
申请公布号 US6663065(B1) 申请公布日期 2003.12.16
申请号 US20020173176 申请日期 2002.06.18
申请人 WHITTENBURG FRANKLIN 发明人 WHITTENBURG FRANKLIN
分类号 B66C23/20;F16M13/02;(IPC1-7):A47B96/06 主分类号 B66C23/20
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