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发明名称
Keyboard instrument control
摘要
申请公布号
US2636413(A)
申请公布日期
1953.04.28
申请号
US19520277127
申请日期
1952.03.18
申请人
MURRAY ALAN E
发明人
MURRAY ALAN E.
分类号
G10C3/00
主分类号
G10C3/00
代理机构
代理人
主权项
地址
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