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发明名称
MOVABLE PART DISPLACEMENT DETECTING MECHANISM FOR OPTICAL HEAD
摘要
申请公布号
JPH03292639(A)
申请公布日期
1991.12.24
申请号
JP19900095502
申请日期
1990.04.11
申请人
RICOH CO LTD
发明人
OBARA TAKASHI
分类号
G11B7/085;G11B7/09
主分类号
G11B7/085
代理机构
代理人
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地址
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