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发明名称
Musical instrument
摘要
申请公布号
US2195521(A)
申请公布日期
1940.04.02
申请号
US19380197501
申请日期
1938.03.22
申请人
BEAN MUSIC COMPANY
发明人
REBSAMEN WILLIAM FREDERICK
分类号
G10D1/10
主分类号
G10D1/10
代理机构
代理人
主权项
地址
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