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发明名称
Sound producer
摘要
申请公布号
GB857979(A)
申请公布日期
1961.01.04
申请号
GB19590005990
申请日期
1959.02.20
申请人
JESSIE W. KARSTED;IRVIN F. SUMNER
发明人
分类号
G10H1/047
主分类号
G10H1/047
代理机构
代理人
主权项
地址
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