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发明名称
Musical instrument attachment
摘要
申请公布号
US2148540(A)
申请公布日期
1939.02.28
申请号
US19370181926
申请日期
1937.12.27
申请人
ENFIELD DIBERT
发明人
DIBERT ENFIELD
分类号
G10D7/10
主分类号
G10D7/10
代理机构
代理人
主权项
地址
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