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发明名称
CUTTING OF MODULATED GROOVES IN DISCS
摘要
申请公布号
GB1441579(A)
申请公布日期
1976.07.07
申请号
GB19720042263
申请日期
1972.09.12
申请人
EMI LTD
发明人
分类号
G11B3/00;(IPC1-7):G11B3/34
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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