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发明名称
OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE
摘要
申请公布号
JPH01185848(A)
申请公布日期
1989.07.25
申请号
JP19880011779
申请日期
1988.01.21
申请人
RICOH CO LTD
发明人
SHIBAKUCHI TAKASHI;KOYAMA JIRO
分类号
G11B7/09
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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LEARNING SYSTEM
