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发明名称
EXPOSURE DEVICE FOR MASTER OPTICAL DISK
摘要
申请公布号
JPH041946(A)
申请公布日期
1992.01.07
申请号
JP19900178410
申请日期
1990.07.05
申请人
RICOH CO LTD
发明人
MORIMOTO TAKAO
分类号
G11B7/26;(IPC1-7):G11B7/26
主分类号
G11B7/26
代理机构
代理人
主权项
地址
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