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发明名称
IMPROVEMENTS IN OR RELATING TO SOUND REPRODUCING DEVICES
摘要
申请公布号
GB2093627(B)
申请公布日期
1983.01.19
申请号
GB19820001686
申请日期
1978.08.11
申请人
OZEN CO LTD
发明人
分类号
G11B3/00;G11B19/02;G11B19/20;G11B33/12;H05K7/02;(IPC1-7):G11B19/20;H02K13/12
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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