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经营范围
发明名称
OPTICAL DISK
摘要
申请公布号
JPS6352348(A)
申请公布日期
1988.03.05
申请号
JP19860193936
申请日期
1986.08.21
申请人
RICOH CO LTD
发明人
YAMAMURO SATORU;UEDA YUTAKA;UMEHARA MASAAKI
分类号
G11B7/24
主分类号
G11B7/24
代理机构
代理人
主权项
地址
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