发明名称 KEYBOARD MUSICAL INSTRUMENT LEARNING AID
摘要 A keyboard musical instrument learning aid having a plurality of keys including: sensing means operatively associated with the keyboard for sensing the presence of an object at a spaced disposition with respect to the keys of the keyboard; positioning means operatively associated with the sensing means for positioning the sensing means such that the spaced disposition is within a predetermined space with respect to the keys; and reporting means operatively associated with the sensing means and operable to report when an object is sensed to be present at the spaced disposition.
申请公布号 CA2780022(C) 申请公布日期 2017.01.03
申请号 CA20102780022 申请日期 2010.12.02
申请人 BAROSSO, LUIGI;BAROSSO, CARLA 发明人 BAROSSO, LUIGI;BAROSSO, CARLA
分类号 G09B15/06 主分类号 G09B15/06
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