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发明名称
Electric device for musical instruments
摘要
申请公布号
US1870576(A)
申请公布日期
1932.08.09
申请号
US19320591481
申请日期
1932.02.08
申请人
THE BALDWIN COMPANY
发明人
KNOBLAUGH ARMAND F.
分类号
G10H3/18
主分类号
G10H3/18
代理机构
代理人
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地址
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