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发明名称
REPEATER-TYPE SOUND REPRODUCER
摘要
申请公布号
GB8401673(D0)
申请公布日期
1984.02.22
申请号
GB19840001673
申请日期
1984.01.23
申请人
OZEN CORPORATION
发明人
分类号
G11B3/00;(IPC1-7):G11B3/08
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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