发明名称 PUMP JACK TREE STAND
摘要 The invention comprises, in one form thereof, a pump jack tree stand including a platform and a seat engaging a pump jack. The pump jack cooperates with a pole that is supported by an adjacent tree. The user actuates a foot lever on the pump jack to climb the pole. The pump jack's release is hand actuated as opposed to the commonly used foot-actuated release.
申请公布号 US2007175702(A1) 申请公布日期 2007.08.02
申请号 US20070670222 申请日期 2007.02.01
申请人 SIMONE ANTHONY 发明人 SIMONE ANTHONY
分类号 E04G3/00 主分类号 E04G3/00
代理机构 代理人
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