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发明名称
DISPLACEMENT MEASURING DEVICE AND OPTICAL PICKUP
摘要
申请公布号
JPH0829123(A)
申请公布日期
1996.02.02
申请号
JP19940180932
申请日期
1994.07.08
申请人
RICOH CO LTD
发明人
MAEDA HIDEO
分类号
G01B11/00;G11B7/09;(IPC1-7):G01B11/00
主分类号
G01B11/00
代理机构
代理人
主权项
地址
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