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发明名称
ADJUSTABLY MOUNTED PLAYER PIANO KEY ACTUATING ASSEMBLY
摘要
申请公布号
US3581254(A)
申请公布日期
1971.05.25
申请号
USD3581254
申请日期
1969.06.13
申请人
DALE ELECTRONICS INC.
发明人
RICHARD L. CANNON;LEONARD R. D. SMITH
分类号
G10C3/20
主分类号
G10C3/20
代理机构
代理人
主权项
地址
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