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发明名称
OPTICAL HEAD FOR V-GROOVE TYPE OPTICAL DISK AND SIGNAL DETECTION
摘要
申请公布号
JPH03224139(A)
申请公布日期
1991.10.03
申请号
JP19900017757
申请日期
1990.01.30
申请人
CITIZEN WATCH CO LTD
发明人
NAKAMURA SATOKATSU
分类号
G11B7/09;G11B7/135
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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