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发明名称
SEPARATE TYPE OPTICAL PICKUP DEVICE
摘要
申请公布号
JPH02218022(A)
申请公布日期
1990.08.30
申请号
JP19890037946
申请日期
1989.02.17
申请人
RICOH CO LTD
发明人
GOTO HIROSHI
分类号
G11B7/08;G11B7/135
主分类号
G11B7/08
代理机构
代理人
主权项
地址
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