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发明名称
摘要
申请公布号
JPS538215(U)
申请公布日期
1978.01.24
申请号
JP19760089623U
申请日期
1976.07.05
申请人
发明人
分类号
G11B33/12;H04R1/02;(IPC1-7):G11B1/00
主分类号
G11B33/12
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代理人
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