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发明名称
MILIEU D'ENREGISTREMENT OPTIQUE D'INFORMATIONS
摘要
申请公布号
FR2569034(B1)
申请公布日期
1990.08.10
申请号
FR19850012349
申请日期
1985.08.13
申请人
RICOH KK
发明人
HIDEAKI OBA, YUTAKA UEDA, TSUTOMU SATO, MASAAKIRA UMEHARA ET MICHIHARU ABE
分类号
G11B7/2472;G11B7/249;G11B7/253;G11B7/2533;(IPC1-7):G11B7/24
主分类号
G11B7/2472
代理机构
代理人
主权项
地址
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