发明名称 Musical instrument system
摘要 A musical teaching system including a plurality of blocks adjacent one another. Each block includes a graphical representation of upbeat and downbeat, and also includes a graphical representation of a musical beat and a musical note or rest. In one embodiment the blocks are mounted on a shaft and are urged into frictional engagement by shaft mounted springs.
申请公布号 US2009095143(A1) 申请公布日期 2009.04.16
申请号 US20070717607 申请日期 2007.03.13
申请人 LAY PATRICK 发明人 LAY PATRICK
分类号 G09B15/02 主分类号 G09B15/02
代理机构 代理人
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