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经营范围
发明名称
GRAMOPHONE RECORD SCRATCH NOISE SUPPRESSION CIRCUIT
摘要
申请公布号
GB2008366(B)
申请公布日期
1982.05.06
申请号
GB19780044029
申请日期
1978.11.10
申请人
PHILIPS NV
发明人
分类号
G11B3/00;H03G3/20;H03G3/34;(IPC1-7):H04B1/10
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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