发明名称 Keyboard instrument stand with concave sides
摘要 The present invention features a keyboard instrument stand having concave sides on the main beam. A set of legs is pivotably attached to the sides of the beam, wherein the beam can stably rest on the extended legs. The unique positioning of the legs provide for many advantages, including reduction in rocking of the stand during a performance.
申请公布号 US8464988(B1) 申请公布日期 2013.06.18
申请号 US201113086973 申请日期 2011.04.14
申请人 WALKER BROCK B. 发明人 WALKER BROCK B.
分类号 A47F5/00 主分类号 A47F5/00
代理机构 代理人
主权项
地址