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发明名称
Optical disc security feature
摘要
申请公布号
GB2326843(A)
申请公布日期
1999.01.06
申请号
GB19970013978
申请日期
1997.07.03
申请人
GEOFFREY * STRACHAN
发明人
GEOFFREY * STRACHAN
分类号
G11B23/28;G11B23/40;(IPC1-7):G11B23/40;B44C1/17
主分类号
G11B23/28
代理机构
代理人
主权项
地址
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