Invention Grant
US08541671B1 Lost motion compensation device for an upright piano action 失效
用于立式钢琴动作的失速运动补偿装置

Lost motion compensation device for an upright piano action
Abstract:
Lost motion compensation device is a mechanical device that rigidly and pivotally connects the rest rail of an upright piano to the front end of the whippen of an upright piano to cause the two member to rotate in unison as the rest rail is rotated by depressing and releasing the soft pedal on an upright piano.
Public/Granted literature
Information query
Patent Agency Ranking
0/0