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发明名称
Musical instrument
摘要
申请公布号
US1754290(A)
申请公布日期
1930.04.15
申请号
US19270242655
申请日期
1927.12.27
申请人
VASEY JOSEPH N
发明人
VASEY JOSEPH N.
分类号
G10C3/06
主分类号
G10C3/06
代理机构
代理人
主权项
地址
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