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发明名称
Mechanical musical instrument
摘要
申请公布号
US1961369(A)
申请公布日期
1934.06.05
申请号
US19310573334
申请日期
1931.11.06
申请人
DAVID H. HOFFMAN
发明人
LAUTER FRED I.
分类号
G10F1/06
主分类号
G10F1/06
代理机构
代理人
主权项
地址
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